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【简答题】
物理删除记录的命令是
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【单选题】听力原文：M: Martha, you look so tired. W: I am. I've been working on the report for the committee for three days and nights. Q: Why is the woman tired? (4)
A.
She's on a committee.
B.
She's been working late.
C.
She exercises too much.
D.
She's trying to account for the report.
【单选题】听力原文：W: Oh, dear, I'm tired of talking about the trip. M: So am I. The more we discuss the trip, the less likely it seems we can afford it. Q: What does the man mean? (10)
A.
The trip might be extremely tiring.
B.
They would like to take more trips.
C.
They've talked too much about the trip.
D.
The trip will probably be too expensive.
【简答题】显示 100 到 150 之间的所有素数。要求用主图和过程 isp 实现。过程 isp(m,f) 的功能是,判断整数 m ( m ≥ 2 )是否为素数,如果是素数,则 f 为 true ,否则 f 为 false 。
【简答题】图(a)所示电路中，L 1 =1H，L 2 =4H，M=2H，R 1 =R 2 =1Ω，U S =10V，电路为零状态。t=0时合上开关S。求i 1 及i 2 。
【单选题】听力原文：W: Are you OK? You look really tired. M: I am. I cant seem to sleep at night. Ive been under a lot of pressure lately. W: Whats up? M: Ive got a million things to do. Im busy at work. Im working ...
A.
Learn to meditate or learn yoga.
B.
Walk to the supermarkets.
C.
Go mountain-climbing once a week.
D.
Take part in a bicycle race.
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