10春学期《行政管理学》在线作业

10春学期《大学英语（一）》在线作业1. ( )would you like, tea or coffee?A. How B. Why C. What 满分：2

奥鹏 10春学期《大学英语(1)》作业1
1.the new laws threaten to ______ many people of the most elementary ***s.
a.deprive
b.deceive
c.snatch
d.depress
满分：4 分
2.heather was born _______ lima _______ august 7,1966 ______ 3:30 in the afternoon.
a.at...by...on
b.in...in...in
c.in...on...at
d.at...at...at
满分：4 分
3.we must try to ______ the best of our moral values for our children and grandchildren.
a.predict
b.prescribe
c.purchase
d.preserve
满分：4 分
4.the strong beam of light from a light house is used by sailors _______.
a.to determining their location
b.in determining their location
c.with determining their location
d.while determining their location
满分：4 分
5.she had been kind to me,so i felt ______ to help her when she was in trouble.
a.detached
b.obliged
c.generous
d.virtuous
满分：4 分
6.the presence of armed guards______ us from doing anything disruptive
a.excited
b.irritated
c.prevented
d.encourage
满分：4 分
7.now the problem of energy is becoming critical.it______ an immediate solution.
a.calls on
b.calls up
c.calls at
d.calls for
满分：4 分
8.he is delighted _______ his new secretary.
a.to
b.with
c.of
d.at
满分：4 分
9.if you play with electricity,you may get an electric _______.
a.strike
b.beat
c.shock
d.knock
满分：4 分
10.the music would stop at intervals,then ______ after a while.
a.restore
b.recover
c.resume
d.assume
满分：4 分
11.-- do you know the girl with long hair?i don’t think so,although she ______ me of someone i know.
a.remembers
b.reminds
c.recalls
d.recollects
满分：4 分
12.his mother always keeps a candle in the house ______ there is a power cut.
a.in case
b.in the case
c.in the event
d.in event of
满分：4 分
13.when you read his books,you have to read between the lines; there’s so much______ in his writing.
a.irony
b.vocabulary
c.grammar
d.idiom
满分：4 分
14.she has bought a pair of glasses,which she can never ______when reading books.
a.do with
b.do without
c.do up
d.do away
满分：4 分
15._______ the gas shortage,i’m going to buy a compact car this year.
a.in front of
b.in place of
c.in terms of
d.in view of
满分：4 分

10春学期《概率与统计原理》在线作业
一、单选题
1. 假设检验中，一般情况下，（ ）错误。
A. 只犯第一类
B. 只犯第二类
C. 既可能犯第一类也可能犯第二类
D. 既不犯第一类也不犯第二类
2.某种零件的直径规定为10厘米，但生产的结果有的超过10厘米，有的不足10厘米。在正常生产的情况下，其误差的分布通常服从
A. 二项分布
B. 正态分布
C. 均匀分布
D. 泊松分布
3.在参数估计中利用t分布构造置信区间的条件是
A. 总体分布需服从正态分布，且方差已知
B. 总体分布需服从正态分布，且方差未知
C. 总体不一定是正态分布，但需要大样本
D. 总体不一定是正态分布，但需要方差已知
4.某汽车轮胎厂欲估计轮胎的平均行驶里程，由于轮胎行驶里程受汽车型号、行驶的路面以及汽车前后轮胎位置等影响，因此使用了容量为400的样本进行随机检测，检测结果为平均行驶里程为20000公里，标准差为6000公里。则总体平均行驶里程的0.95置信区间为
A. （19715，20285）
B. （19506.5，20493.5）
C. （19412，20588）
D. （19400，20600）