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【简答题】
设m∈R，复数Z=（2+i）m 2 -3（1+i）m-2（1-i），当实数m取什么值时，复数Z是？ （1）实数； （2）纯虚数； （3）复平面内第一、三象限角平分线上的点对应的复数．
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【简答题】根据短文内容，判断正（T）误（ F）。 A young man and an old man are walking in the park. The old man is behind the young man. He is tired, so he wants to have a rest. There is a chair in front of the young man. The ol...
【单选题】选出下列句中的表语( )The old man was feeling very tired.
A.
The old man
B.
was
C.
feeling
D.
tired
【单选题】选出句中的表语: The old man was feeling very tired .
A.
the old man
B.
was
C.
feeling
D.
tired
【单选题】指出句中表语:The old man was feeling very tired.
A.
the old man
B.
feeling
C.
tired
D.
very tired
【简答题】选出表语 The old man was feeling very tired .
【简答题】表语 The old man was feeling very tired
【单选题】选出下面句子的表语 The old man was feeling very tired.
A.
the old man
B.
was feeling
C.
very tired
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