题目内容

Lance:Mary doesn't look well.Lee:______.

A. Yes, she doesn't.
B. Yes, she isn't.
C. No, she doesn't.
D. No, she isn't.

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Louise: Will 100 dollars be enough?Jack: Another 50 ______.

A. will do
B. is fine
C. will
D. needs

Tammy: Someone is at the doctor.Richard: ______.

A. Who is he?
B. Who's it?
C. Who he is?
D. Who it is?

属于犬生理性肺呼吸音是()

A. 啰音
B. 捻发音
C. 混合呼吸音
D. 空瓮音
E. 齿轮呼吸音

下列叙述正确的是()

A. 用相同的字长表示二进制数,浮点数表示的范围比定点数表示的范围大。
B. 浮点数运算规则比定点数复杂。
C. 两个浮点数相乘(除)只需阶码相加(减)尾数相乘(除)
D. 浮点数表示的一般形式为: N=2p×S

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