在考虑墙体的内外表面装修做法时，应尽可能使进入墙体的水蒸汽（）。
A.进易出难
B.进难出易
C.进易出易
D.进难出难
参考答案：B
I shall never forget the days I spent in Beijing University, has a great effect on my life.
A．that; which
B．which; that
C．when; that
D．when; which
石膏的性味是（）。
A.辛苦大寒
B.辛咸大寒
C.辛酸大寒
D.辛甘大寒
E.甘淡大寒
