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【简答题】
半导体具有以下三种特性:热敏性, 光电性和 ____性。
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皮皮学刷刷变学霸
举一反三
【简答题】质点相对于静止参照系的运动称(______)运动,相对于运动参照系的运动称(______)运动。
【单选题】一、 Greeting 1 、 —Hello, Joan. — Kate. Glad to see you.
A.
Hi
B.
Hello
C.
Good morning
D.
How do you do
【单选题】Joan: Could you get me Extension 6459, please? Operator: ______
A.
Hello? This is Tom Brown.
B.
Sure. Here you are.
C.
Sorry. The line is engaged.
D.
John Smith's office. What can I do for you?
【单选题】听力原文：W: Hello, Stall. Come in. I'll put the kettle on. M: Hello, Joan. How are you? You didn't sound too cheerful on the phone. W: Oh, nothing's wrong. I just felt like some company. The days seem so ...
A.
She works in a company.
B.
She lives near a company.
C.
She enjoys watching TV.
D.
She needs someone to talk with.
【简答题】_ ______________________, sir? W: I’m John Wilson.
【简答题】一个位只能表示两种状态，即 和1。
【简答题】质点相对于静止参照系的运动称为(____)运动,相对于运动参照系的运动称为(____)运动。
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