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【单选题】
沿石英晶体的光轴z的方向施加作用力时，（ ）。
A.
在晶体的电轴 x 方向产生电荷
B.
在晶体的机械轴 y 方向产生电荷
C.
在晶体的光轴 z 方向产生电荷
D.
晶体不产生压电效应
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【单选题】C 语言中 char 类型数据占字节数为
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【单选题】If you were _______ people, you would have more friends. [     ]
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【单选题】C语言中char类型数据占字节数为
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2
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3
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4
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【多选题】A female staff member helps an elderly businessman to carry his heavy luggage back to his hotel. The businessman said, "Thank you very much." If you were the staff, how would you respond to his thanks...
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It's my duty to do so.
B.
My pleasure.
C.
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【单选题】If you were from a high contact culture and appreciating a monument, what would you do?
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Look at the monument from afar away and use your sense of sight to take in the full image of the monument.
B.
Appreciate the monument from standing close and using senses such as sight, touch, and smell to understand the monument.
C.
Take in clues from the situation to help you understand what the person is saying.
D.
Don't pay too much attention to the situation and only take in the exact words of the other person.
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【单选题】C语言中char类型数据占字节数为（ ）。
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3
B.
4
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2
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【单选题】If you were invited to an American family's house for dinner how much later after the scheduled time would you arrive?
A.
10-15 minutes later.
B.
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A.
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B.
4
C.
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【单选题】If you were invited to an American family's house for dinner how much later after the scheduled time would you arrive?
A.
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B.
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1 hour later.
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