1._______,metals are heavy.

wgnew2022-10-04 11:39:544条回答

1._______,metals are heavy.
A.In general
B.In a moment
C.In a hurry
D.In a corner
满分:5 分
2.He and his wife go to the cinema ________.
A.on occasions
B.on duty
C.on sale
D.on average
满分:5 分
3.The new reporters hurried to the airport,only _____
the film stars had left.
A.to be told
B.to tell
C.telling
D.told
满分:5 分
4.A number of paintings in the castle are believed
______ in a fire.
A.being destroyed
B.having been
destroyed
C.to be destroyed
D.to have been
destroyed
满分:5 分
5.It's important _________ the piano well.
A.of him to play
B.for him to play
C.of him playing
D.for him playing
满分:5 分
6.---_________ is the bike?---Just $150.
A.How much
B.How many
C.How long
D.How often
满分:5 分
7.___________ of the accident last year,he had to lie
in bed for 3 months.
A.For a result
B.In a resul
C.With a result
D.As a result
满分:5 分
8.The problem _______ at tomorrow’s meeting is a very
difficult one.
A.being discussed
B.discussed
C.to be discussed
D.to discuss
满分:5 分
9.He was too excited _________.
A.speak
B.not to speak
C.to speak
D.speaking
满分:5 分
10.We are not allowed ______ out doors with some other
children.
A.playing
B.to be playing
C.to play
D.be playing

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满分:5 分
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3Instructions
Mix metal with acid (and water) in test tube.If nothing happened,try to heat the test tube a bit.Record your observations in the following data table.
Metal HCL(0.5M) Water
Mg
Ca
Na
Al
Cu
4Safety
1The reaction could possibly generate lots of heat and hydrogen gas.Try to use only small amount of metal during the reaction!
2Hydrogen gas is flammable.Please keep your reaction container away from open flame.
3HCL is a strong acid.It could burn your skin and cloth.Goggle and lab coat are mandatory
4Requirement for lab report
1write a full report about this lab,including:
Introduction (purpose and hypothesis)
Materials (chemicals and apparatus)
Procedure
Result (data collection)
Conclusion and evaluation
2Print your report
3No less than800words
silentwinter1年前1
猫猫咪哟 共回答了20个问题 | 采纳率85%
have a look at these links
This kind of machine is used ____ metals.A.to cutting B.for
This kind of machine is used ____ metals.A.to cutting B.for cut C.for cutting D.cut
xingxing60620031年前1
小雨13304 共回答了19个问题 | 采纳率100%
C.for cutting
为什么不能用that?Metals are used in industry in the form of alloy
为什么不能用that?
Metals are used in industry in the form of alloy because the properties of alloys are much better than (((( that))) of pure metals.
为什么不能用((((that))))?
有没有好好看题目。that是不对的,我问为什么that是错的?
热门网址1234561年前3
good_morning 共回答了27个问题 | 采纳率88.9%
这相当于一个比较级形式.在比较级中,指代前文的东西,用that指代不可数名词,用those/the ones指代可数名词.用one指代单数可数名词.
那么由于properties是复数,所以不能用that,应该用those
探讨!商榷!
Metals are melted so that they can be made ihto different sh
Metals are melted so that they can be made ihto different shapes
谁知道这句话怎么翻译~~~~~~~
sherose1年前10
zhi3piao 共回答了16个问题 | 采纳率87.5%
金属可被溶解以便它们可以被做成不同的形状~
英语翻译Why does man use metals still so much today when there a
英语翻译
Why does man use metals still so much today when there are materials,especially plastics,which are available?A material is generally use because it offers the required strength,and other properties,at minimum cost.Appearance is also an important factor.The main advantage of metals is their strength and toughness.Concrete may be cheaper and is often used in building,but even concrete depends on its core of steel for strength.
黑炫1年前1
狐狸和妖精 共回答了18个问题 | 采纳率94.4%
为什么人仍然使用金属今天这么多如果有材料,尤其是塑料制品,可供?物资普遍使用,因为它提供必要的力量,和其他财产,以最小的代价.外观也是一个重要因素.的主要优点是其金属的强度和韧性.混凝土可能会更便宜,通常用于建设,但即使具体取决于其核心钢的强度.
uncommon metal和rare metals的区别
风起终南1年前1
香樟树长呀长 共回答了19个问题 | 采纳率68.4%
均为稀有金属…后者好像多在化学中使用的那种吧
prices for goods such as precious metals and oil set records
prices for goods such as precious metals and oil set records
此句中,set records
是再创新高吗?
aajj981年前3
雅柔伊人 共回答了16个问题 | 采纳率93.8%
创记录
During the summer,prices for goods such as precious metals a
During the summer,prices for goods such as precious metals and oil set records.Oil hit an all-time high of over one hundred forty-seven dollars a barrel on July eleventh.As a result,Americans started driving less.
此句中driving
jleon1101年前1
aka128 共回答了22个问题 | 采纳率90.9%
美国人开始更少驾车出行.(因为油价上涨)
fused alkali metals
nn怎么啦1年前4
zheng11111 共回答了11个问题 | 采纳率72.7%
碱性金属熔合
Light metals找一篇有关轻金属的英文文章
yedandan1年前1
ff外宣办網络局 共回答了18个问题 | 采纳率94.4%
Light Metals
Through offices in major cities worldwide Hatch Light Metals delivers projects and expertise in aluminium,magnesium,and titanium to clients on six continents.
Aluminum expertise covers the full range of bauxite,alumina refining,aluminium smelting and downstream finishing.
The Light Metals sector is a core business for Hatch,with more than 4,000 full-time employees available to deliver any-sized projects.Hatch has been synonymous with aluminum for more than 40 years.Today,we work with the world's leading aluminum producers on some of their most significant projects.
Hatch is a Foundation Sponsor of the 6th International Alumina Quality Workshop in Brisbane,Australia.The Workshop is designed for alumina professionals.There will be technical paper presentations by leading researchers,technologists,and practitioners; a trade exhibit; and an optional technical tour to the QAL refinery and BSL smelter.Among the key issues to be addressed are Improving Alumina Quality,Minimising Environmental Impacts,Impact of Impurities on Production,Process Modelling,and New Technologies and Equipment.
Light Metal Age
Light Metal Age,read worldwide,is the only U.S.magazine exclusively devoted to primary production and semi-fabrication of light metals.Unlike less specialized or product-oriented magazines that emphasize assembly of end-product manufacturing methods,every issue of Light Metal Age stresses editorial coverage of:
SMELTING and allied subjects including:
EXTRUSION ANODIZING
ROLLING HEAT TREATMENT
CASTHOUSE FORGING
SECONDARY ALUMINUM DIE CASTING
MELTING ALLOYING
COMPOSITING
METALLURGY
COIL COATING
DEGASSING
DIE MAKING
Featured Departments:Extruders News,Light Metal World,Rolling Mill News,Pot Lines,International Aluminum Production,New Products,New Literature,International Patent Calendar,International Alumimum Abstracts,Contracts and Expansions,Personalities and Plants,Industry Profile and Conference Calendar.
There are many kinds of metals,____ its special properties.A
There are many kinds of metals,____ its special properties.A.each having B.every having C.ea
请问each和every的区别
英雄劳尔1年前3
kikiyang1112 共回答了23个问题 | 采纳率91.3%
each,every这两个词都有“每个”的意义.
each强调各别、各个,而every 强调全部、都
He can get up for about two hours each day.
他每天可以起床活动大约两个小时.
He gave each boy an apple.
他给每个孩子一个苹果.
Nearly everybody enters for 'The Nicest Garden Competition' each year,but Joe wins everytime.
几乎每年每人都报名参加“最佳花园赛”,但每次都是乔获胜.
From each according to his ability,to each according to his work.
各尽所能,按劳分配.
The sun shines every day.
每天都是阳光灿烂.
He is only forty-one years old,and he has already been to nearly every country.
他只有41岁,而他已经几乎到过一切国家.
either
pron
两者之一
I'm afraid that either of them will not agree to this arrangement.
我担心他们两人都不会同意这样的安排的.
There's coffee or tea - you can have either.
咖啡或茶——你可以任选一种.
Is either of the sisters coming?
这俩姐妹中有哪个要来吗?
A:Do you speak German or Italian?B:I don't speak either.
甲:你会讲德语或意大利语吗?乙:
either
adv
也(不)
I haven't read it and my brother hasn't either.
我没有读过,我兄弟也没读过.
"I haven't seen this film,and my brother hasn't either."
"我没有看过这部电影,我哥哥也没有."
"'I can't swim!' 'I can't,either!'; 'Neither can I!'"
'我不会游泳!' '我也不会!'
"If you don't go,I won't either."
"如果你不去,我也不去."
either
conj
或;不是…就是
Either my father or my brothers are coming.
不是我父亲就是我兄弟要来.
If either David or Janet come,they will want a drink.
如果大卫或珍妮特来,他们就要喝酒.
"I'm considering to buy my niece a Christmas present,either a dictionary or an encyclopedia."
"我在考虑给我侄女买一样圣诞礼物,不是词典就是百科全书."
Either say you're sorry or else get out!
"你要么道歉,要么滚开!"
"The gunman's coat was either red,blue or green--I can't remember."
"持枪人的外套不是红的,蓝的,便是绿的——我记不清楚了."
为什么金属可以导热正在做化学题目(国外的)要求我们画图解答a) Metals conduct electricityb)
为什么金属可以导热
正在做化学题目(国外的)
要求我们画图解答
a) Metals conduct electricity
b) Metals conduct heat
c) Metals are ductile
d) Ionic substances shatter when hit
e) Ionic substances are hard but dissolve in water
f) ionic substance conduct electricity when dissolved in water
第一个做完了
下面几个求助
关注妇女1年前1
zz男人2 共回答了17个问题 | 采纳率94.1%
金属内部的电子一直在做无规则的运动,在产生温度梯度或施加电场后,电子运动的取向近似一致.从而传导热和电流.

大家在问