竹、铅丝笼围堰的适用范围是( )。
A.流速较大而水深在1.5~4m
B.黏性土、砂类土及碎石类土河床
C.深水基础
D.各类土(包括强风化岩)的深水基础
参考答案:A
The new computers _____ very well, and they _________ in many countries.
A.sell; are sold
B.are sold; sell
C.sell; sell
D.are sold; are sold
急性粒细胞白血病()
A.外周血白细胞增高
B.淋巴结明显肿大
C.两者均有
D.两者均无