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【单选题】
以下有关中断I/O方式的叙述中，错误的是（ ）。A.
中断请求的是 CPU 时间，要求 CPU 执行处理发生的相关事件
B.
CPU 对外部中断的响应不可能发生在一条指令的执行过程中
C.
中断 I/O 方式下，外设接口中的数据和 CPU 中的寄存器内容直接交换
D.
只要有中断请求发生，那么一条指令执行结束后 CPU 就进入中断响应周期
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举一反三
【单选题】Look at the window. Who it, do you know? [ ]
A.
break: broke
B.
broke: broke
C.
broken; broke
D.
broken; broken
【单选题】The lift _____ and we were trapped inside it.
A.
broke down
B.
broke up
C.
broke out
D.
broke in
【单选题】The criminal ______ from the two policemen and ran away. [ ]
A.
broke off
B.
broke away
C.
broke up
D.
broke down
【单选题】The war _______ in 1998. A. broke in B. broke up C. broke out D.broke apart
A.
broke in
B.
broke up
C.
broke out
D.
broke apart
【判断题】"Dawn broke on the doctor's face" because he suddenly came to see a way out of this sticky situation.
A.
正确
B.
错误
【单选题】You cannot check your opponent more than _____ times in a row with the same piece and same board positions.
A.
two
B.
three
C.
four
D.
five
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