Nick said he would be very happy if Socrates still lived today.
查看答案
As there was not enough time. Nick would not be able to see the other well-known places in Athens.
A. 对
B. 错
Nick went to Greece with his aunt and uncle for a visit.
A. 对
B. 错
晶体管处于饱和状态时，其集电结________偏，发射结________偏。
A. 正／反
B. 反／正
C. 正／正
D. 反／反
晶体管处于截止状态时，其集电结________偏，发射结________偏。
A. 正／反
B. 反／正
C. 正／正
D. 反／反
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