皮皮学,免费搜题
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【多选题】
自同步并列方式的主要优点是:
A.
产生的冲击电流较小
B.
操作简单
C.
速度快
D.
有利于处理系统事故
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皮皮学刷刷变学霸
举一反三
【单选题】—I have a _______. —You shouldn’t eat too much candy.
A.
toothache      
B.
headache       
C.
backache
【判断题】催化剂能够加快化学反应速率,参与化学反应,进入化学反应的计量。
A.
正确
B.
错误
【单选题】Does money buy happiness? It's sometimes said that scientists have found no relationship between money and happiness, but that's myth, says University of Illinois psychologist Ed Diener. The connectio...
A.
the contributions of household incomes to happiness
B.
the complex relationship between money and happiness
C.
the positive relationship between money and happiness
D.
the negative relations of money to happiness
【简答题】阅读理解。 It's been claimed that playing a musical instrument makes you smarter. New research suggests that regularly playing a musical instrument changes the shape and power of the brain, and may be used...
【单选题】Does money buy happiness? It's sometimes said that scientists have found no relationship between money and happiness, but that's myth, says University of Illinois psychologist Ed Diener. The connectio...
A.
the contributions of household incomes to happiness
B.
the complex relationship between money and happiness
C.
the positive relationship between money and happiness
D.
the negative relations of money to happiness
【单选题】You ____ eat too much junk food. [     ]
A.
must
B.
shouldn't
C.
haven't to
D.
should
【多选题】在催化剂设计中,基于催化反应的经验规律的方法有
A.
能级类型
B.
从吸附热推断
C.
活性模型法
D.
反应时间和温度
【单选题】If you have a stomachache, you shouldn’t eat 24 hours.
A.
anything for
B.
something in
C.
something at
D.
anything in
【单选题】You _________ to eat snacks in the classroom.
A.
shouldn’t
B.
had better not
C.
oughtn’t
D.
needn’t
【单选题】_____ hungry you are, you shouldn’t start to eat before the whole family gather around.
A.
How
B.
However
C.
Unless
D.
If
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