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【单选题】
如果在牛乳中掺水,可导致冰点( )A.
不变
B.
降低
C.
回升
D.
降低或回升
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【简答题】What will keep a sick man working when he should have gone to bed? The stress of his ____________.
【简答题】So you want to go to Mars? Here'ssomething to think about. You're going to have to eat and drink the samethings, over and over again. What comes out of your body will have to go backin again, day afte...
【单选题】听力原文：W：Will this keep me from playing basketball for a long time? M：Not too long．I thought you might have broken your arm，but the X-ray showed that the bone isn't injured. Q：What do you learn about th...
A.
Her arm needs an X-ray check.
B.
She played the basketball too long each time.
C.
She broke her arm in a basketball match.
D.
There is nothing serious with her arm.
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