问题
单项选择题
在关中断状态，不可响应的中断是( )。
A．硬件中断
B．软件中断
C．可屏蔽中断
D．不可屏蔽中断
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
在关中断状态，不可响应的中断是( )。
A．硬件中断
B．软件中断
C．可屏蔽中断
D．不可屏蔽中断
参考答案：C
完形填空（共20小题，每小题1.5分，满分30分） I had been out shopping and really took too much time doing it. I was tired and about to (61) home. That is when I saw her. She was stopped in the left hand turn lane (车道), (62) to get onto the highway but never (63) it. I slowed down, rolled open my window and asked. “Do you need any (64) ?” “Yes, I ran out of gas. I just moved here and I don’t even know (65) a gas station is,” she replied. She didn’t have a gas can, so I told her I’d run down the (66) to see if I could get one from the local station. When I (67) with a full can of gas, she couldn’t (68) me enough and told me she would pay for the an and gas. (69), I refused. As I was (70) the gas in, she said, “I thought no one would even stop. I was afraid to leave the car and even more afraid to (71) help.” “Well, I couldn’t pass by (72) offering help,” I said. “I’ve used up gas myself a few times. You know I’m getting (73). Now I’m running out of gas and time. It just seems to fly by.” She then said (74) that I though was a gem (佳作): “My Dad said that old age is (75) toilet paper. The  closer you get to the end of the roll the (76) it spins.”I laughed so hard that I (77) dropped the container. She tried to start the car and it (78). The I told her to keep the (79) can in her trunk. Seeing her grateful (80), I said friendly, “I’m glad to be of help. Welcome to Pennsylvania.”
|
hardly