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【单选题】
最稳定原子的最外层含有
A.
4个电子
B.
6个电子
C.
8个电子
D.
18个电子
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【单选题】Things are hard with you, but you _______ try to get over the difficulties, for you have no choice. [     ]
A.
can
B.
may
C.
must
D.
ought to
【单选题】I know things are hard with you, but you( )try to get over the difficulties.
A.
can
B.
may
C.
must
D.
ought
【简答题】.'You try to get some sleep. I‘ll _____the patient."You try to get some sleep. I‘ll _____the patient‘s breakfast, "said the nurse. A)see to         B)stick to         C)get to           D)lead to
【判断题】接地(PE)或接零(PEN)线在插座线路间不得串联连接。
A.
正确
B.
错误
【单选题】To appreciate that it's not easy for you, but you ______ try to get here on time.
A.
may
B.
must
C.
will
D.
can
【单选题】You never get ahead of anyone ______ you try to get even with him.
A.
as long as
B.
as well as
C.
as much as
D.
as far as
【判断题】接地(PE)或接零(PEN)线在插座间可以串联连接。
A.
正确
B.
错误
【简答题】If you try to learn too many things at a time, you may get (confuse) ______ .
【单选题】接地(PE)或接零(PEN)线在插座间应串联连接。( )
A.
正确
B.
错误
【单选题】Don’t try to cheat in the examination. You will never __________ it.
A.
get away with
B.
get out
C.
get over
D.
get down to
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