某大学宿舍里A、B、C、D、E、F、G七位同学,其中两位来自哈尔滨,两位来自天津,了

如果电水瓶24小时用：24*750=12780W
如果热水壶烧一次水需半小时,则用：0.5*800*3*5=6000W
由此可见电水瓶每天多用6度电左右,但用12小时则基本持平.用电水瓶可是随时有热水呢!

购买两个相同的热得快,将其串联使用,功率降低一半,但加热时间也会增长至少一倍.

According to several really important-sounding studies,first-year students living on campus perform better academically than those who live off campus.Perhaps it’s because students living in dorms are closer to the things they need,like the library and the computer labs.Or maybe it’s because the meal plan that comes with most dorms takes the pressure off having to forage for food,giving students more time to study.And think of all the potential study partners floating around the hallways or energetically highlighting their textbooks in the study lounge.No wonder dorm life for first years is such a good idea.
Should you live in a dorm your first year?In a word:yes.Socially,you can’t beat dorm living.You’ll make friends easily,commiserate about school with your dormmates,study with groups of friends,always have someone to eat with,and stay up late socializing almost every night.You will share your college experience with other people who are going through the same ups and downs,and that makes everything easier.There is great strength in numbers.
Studying can be difficult in a dorm,because socializing often takes priority over grades.But you can easily balance this by heading to the library or to a quiet study hall.
All of these advantages don’t erase the fact that dorm life can be challenging.You’re living in close proximity to a lot of other people,and that’s a recipe for conflict.But conflict is part of life,and learning how to deal with it successfully is essential to becoming an adult.

从下网上打 全死光 也拿不下 入口就一个,防守方太有利,齐刷刷的对准入口就行.
考虑从顶楼空降 往下打,

unk bed 上下床
upper/top bunk 上(层)床
lower bunk 下(层)床

光太强了对眼当然有伤害.
另外,日光灯一般频闪非常严重,建议买护眼灯.护眼灯也有两种,一种是将低频闪转为高频闪,所以你察觉不出来,另一种是改为直流电,这样就完全无频闪,对眼睛伤害就要小得多了.
PS:专业的人就会知道,LED中的绝大部分频闪非常严重,只不过你看不出来而已.

1、卧谈会圆满结束,啃谈会即将开始.
2、清晨,宿舍里飘来了朗朗的读书声.
3、夜晚,要熄灯了,但同学们仍讨论着一道题目.

宿舍限电主要是通过不同电流大小的保险丝或空气开关实现的,与人多少没有关系.

小华解答数学判断题,答对一题得4分,答错一题扣1分,她答了20道判断题,结果得了75分.小华答对了多少题