生用解毒通便,制用补益精血的药物是()
A.熟地黄
B.何首乌
C.黄精
D.当归
E.阿胶
参考答案:B
What do you usually do____Saturday evening,?
A in B on C at D to
埋藏较深,如断层破碎带,可以用( )加固或防渗。
A.钢板衬砌
B.挡土墙
C.水泥浆灌浆
D.尽可能清除回填