K30试验指用直径()cm的刚性承压板,测定下沉量为()时的地基系数。
参考答案:30;1.25mm
(2013·高考湖南卷)Every day________a proverb aloud several times until you have it memorized.
A.read
B.reading
C.to read
D.reads
防火墙应为不燃烧体,其耐火极限规定为()。
(A)2h
(B)3h
(C)4h
(D)5h