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【单选题】
How should we wash hands properly?A.
Wash hands with alcohol, hand rub or soap and water for at least 15 seconds.
B.
Wash hands before eating and after using the toilet.
C.
A and B
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【单选题】—What’s the time by your watch? rn—_______
A.
It’s half past five.
B.
It’s Sunday.
C.
It’s February.
D.
It’s a fine day.
【单选题】AIDS is said ______ the biggest health challenge to both men and women in that area over the past few years.
A.
that it is
B.
to be
C.
that it has been
D.
to have been
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