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【单选题】
圆规的一条腿装钢针,另一条腿装铅芯,使用时针尖比铅芯( )。
A.
相同
B.
略长
C.
略短
D.
随意
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【单选题】导游讲解服务中的重中之重是
A.
旅游景区(点)讲解
B.
欢迎辞
C.
沿途风光讲解
D.
欢送辞
【简答题】Mark Twain was regarded as the father of Huck Finn's idyllic cruise through eternal boyhood and Tom Sawyer's endless summer of and adventure. A) metonymy B) metaphor  C) personification D) hyp...
【单选题】导游讲解程序中, 是导游讲解程序中的核心内容,是导游讲解服务中的重中之重,也是游客评判导游员水平的重要依据。
A.
欢迎词及欢送词
B.
旅游景区景点的讲解
C.
下榻宾馆饭店的介绍
D.
沿途风光讲解
【简答题】Most Americans remember Mark Twain as the father of Huck Finn's idyllic cruise through eternal boyhood and Tom Sawyer's endless summer of and adventure. (3%)
【单选题】下列中()不是同步发电机的并网条件。
A.
发电机电压的平均值等于电网电压平均值
B.
发电机电压相位与电网电压相位相同
C.
发电机频率与电网频率与电网频率相同
D.
发电机电压相序和电网电压相序一致
【单选题】下列( )不是同步发电机并网条件。
A.
发电机电压的平均值等于电网电压平均值
B.
发电机电压相位与电网电压相位相同
C.
发电机频率与电网频率相同
D.
发电机电压相序和电网电压相序一致
【简答题】Mark had been scolded before for touching his father’s equipment. But his curiosity was difficult to control and this new computer really puzzled him. It was a strange-looking machine — one his dad ha...
【简答题】Most Americans remember Mark Twain as the father of Huck Finn's idyllic cruise through eternal boyhood and Tom Sawyer's endless summer of and adventure.
【单选题】一台三相同步发电机与电网并联时,并网条件除发电机电压小于电网电压10%外,其他条件均已经满足,若在两电压同相时合闸并联,发电机将出现下列哪种现象______
A.
产生很大的冲击电流,使发电机不能并网
B.
产生不大的冲击电流,发出的此电流是电感性电流
C.
产生不大的冲击电流,发出的此电流是电容性电流
D.
产生不大的冲击电流,发出的电流是纯有功电流
【简答题】Most Americans remember Mark Twain as the father of Huck Finn's idyllic cruise through eternal boyhood and Tom sawyer's endless summer of and adventure.
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