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【單選題】
下列實驗操作中錯誤的是
A.
分液時，分液漏斗中下層液體從下口放出，上層液體從上口倒出
B.
蒸餾時，應該使溫度計的水銀球靠近蒸餾燒瓶支管口略下一點
C.
不慎將酸濺到眼中，應立即用水沖洗，邊洗邊眨眼睛
D.
在進行蒸發實驗時，一定要將液體全部蒸干，然后再停止加熱
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舉報參考答案：
舉一反三
【單選題】What will scientists do to deal with the “imperfectness” problem?
A.
Accept the fact and give up.
B.
Improve and change their methods and techniques.
C.
Try their best to carry out the perfect study.
D.
Ignore it and do as they please.
【單選題】Don’t be afraid of them! They have only 13 people ______ while we have 20.
A.
in particular
B.
at the end
C.
in total
D.
as a result
【單選題】______ everybody is here, let’s begin our meeting.
A.
Since
B.
Unless
C.
Until
D.
For
【單選題】We can learn from the last paragraph that ______.
A.
the universe’s questions are sure to have a final answer
B.
the number of questions is sure to increase with the passing of time
C.
scientists are carrying out improved studies
D.
there will be more scientists in the world in the future
【單選題】After the people went ______, the captain ordered to start the ship.
A.
aboard
B.
above
C.
abroad
D.
backstage
相關題目：
【單選題】What will scientists do to deal with the “imperfectness” problem?
A.
Accept the fact and give up.
B.
Improve and change their methods and techniques.
C.
Try their best to carry out the perfect study.
D.
Ignore it and do as they please.
【單選題】Don’t be afraid of them! They have only 13 people ______ while we have 20.
A.
in particular
B.
at the end
C.
in total
D.
as a result
【單選題】______ everybody is here, let’s begin our meeting.
A.
Since
B.
Unless
C.
Until
D.
For
【單選題】We can learn from the last paragraph that ______.
A.
the universe’s questions are sure to have a final answer
B.
the number of questions is sure to increase with the passing of time
C.
scientists are carrying out improved studies
D.
there will be more scientists in the world in the future
【單選題】After the people went ______, the captain ordered to start the ship.
A.
aboard
B.
above
C.
abroad
D.
backstage
參考解析：
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