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【单选题】
为了保证旅游者在发生火灾时能尽快疏散,导游员应A.
熟悉饭店楼层安全出口的位置
B.
熟悉饭店楼层电梯间的位置
C.
禁止游客抽烟
D.
提醒游客阅读客房内的服务指南
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举一反三
【单选题】To understand the culture of different places, especially ______ containing as many different subcultures as the United States, is necessary for everyone in today's internet world.
A.
one
B.
the one
C.
that
D.
such
【单选题】I have to show you. [ ]
A.
different something
B.
something different
C.
anything different
D.
different anything
【简答题】一台三相二极异步电动机,如果电源的频率f1 =50Hz ,则定子旋转磁场每秒在空间转过 转。
【简答题】一台三相二极异步电动机,如果电源的频率 f 1 =50Hz ,则定子旋转磁场每秒在空间 转 转。
【简答题】高合金钢是指合金元素总含量高于 的合金刚。
【单选题】In the last paragraph, the author's attitude is that ______.
A.
different people have different ideas
B.
however difficult the situation is, people should unite and move forward
C.
people should go hack to work immediately
D.
people shouldn't walk with expressionless faces
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