题目内容

下列能够促进胆固醇代谢的水溶性维生素是

A. 维生素B1
B. 维生素B2
C. 维生素C
D. 维生素B12
E. 叶酸

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When()that the principal was very strict, he didn't dare go to the office alone.

A. tell
B. told
C. was telling
D. telling

There()an old man and two bodyguards standing on the platform.

A. to be
B. being
C. is
D. are

若P(2,-1)为圆(x-1)2+y2=25的弦AB的中点,则直线AB的方程是()。

A. x-y-3=0
B. 2x+y-3=0
C. x+y-1=0
D. 2x-y-5=0
E. A、B、C、D都不正确

She shows little regard for the feelings of others and does exactly what she wants to().

A. feeling
B. love
C. consideration
D. sense

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