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【简答题】
8255A的端口C的按位置位复位功能是由控制字中的D7=______来决定的。
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举一反三
【单选题】听力原文：W: Where have you been? M: Where have I been? I was wondering the same thing about you. Q: What does tile man want to know? (17)
A.
What that time is.
B.
How long he will have to wait.
C.
Where the woman has been.
D.
Where they were going.
【单选题】听力原文：Do you know where the conference will be? (A) No, I'm speaking at it. (B) I'm not sure if I'm going. (C) Yes, it'll be in Hong Kong in April. (31)
A.
B.
C.
【单选题】听力原文：W: Please relax and tell me exactly where you are. M: I'm on the Lincoln Highway, about 15 miles from the Washington Tunnel, and this lady is going to have a baby. Q: Where is the man now? (7)
A.
At the airport.
B.
On a ship.
C.
At the office.
D.
In a car.
【单选题】听力原文：W: Where have you been? M: Where have been? I was wondering the same thing about you. What does the man want to know?
A.
He won't tell the woman where he has been.
B.
He wants to know where the woman has been.
C.
He is asking the woman whether she seen the thing he' s looking for.
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