题目内容

--How often do you eat out?--_____, but usually once a week.

A. Have no idea
B. It deoends
C. As usual
D. Generally speaking

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--You haven’t lost the ticket, have you ?--_____.I know it’s not easy to get another one at the moment .

A. I hope not
B. Yes, I have
C. I hope so
D. Yes, I’m afraid so

--Now, where is my purse?--____! We’ll be late for the picnic.

A. Take your time
B. Don’t worry
Come on
D. Take it easy

--Peter was Jane’s brother!--_____he reminded me so much of Jane!

A. No doubt
B. Above all
C. No wonder
D. Of course

机械式按键在闭合和断开的过程中都存在抖动问题，去抖动方式有去抖和去抖。