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【判断题】
广交会每个月都办一次。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】设(X,Y)的联合分布列为 求X-Y:( )( )( )( )( )( )
【单选题】听力原文：W: Well, it seems to me that everybody's talking about E-mail nowadays. When you exchange cards with others, you'll feel out of time and start at a disadvantage if your card hasn't an E-mail addr...
A.
Everybody's talking about E-mail nowadays.
B.
If you don't have one, you will be out of time.
C.
It's the easiest way to communicate with other users.
D.
It's printed on every card people exchange with others.
【单选题】将 CX 寄存器低 4 位清零的正确指令是() 。
A.
AND CX ， 0F0H
B.
AND CX ， 0FFF0H
C.
AN
D.
CX ， 1110H D.MOV CX ， 0
【单选题】听力原文：W: Well, it seems to me that everybody's talking about E-mail nowadays. (25) When you exchange cards with others, you'll feel out of time and start at a disadvantage if your card hasn't an E-mail...
A.
Because it's the easiest way to communicate with other users.
B.
Because it's printed on every card people exchange with others.
C.
Because everybody's talking about E-mail nowadays.
D.
Because if you don't have one, you will be out of time.
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