What kind of haircut did the man want
A fashionable style.
B. A basic trim.
C. A little off the top and more off the sides.
D. A permanent wav
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设f(x)=x2(x-1)(x-2)，则f'(x)的零点个数为______．
A. 0
B. 1
C. 2
D. 3
What were the men doing according to the police
A. They were treating industrial waste.
B. They were tanking industrial waste.
C. They were tanking chemicals.
D. They were using a tank to mix chemicals.
It has been estimated that the earth's surface temperature has increased ______ one quarter to three quarters of a degree since 1850. ~
A. to
B. by
C. at
D. with
What Can we infer about the woman
A. That she has stopped smoking.
B. That she does not want to get married.
C. That she has asked the man to quit smoking many times.
D. That she is not in love with the man.
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