经缩分、烘干后取200g的试样两份用于砂子泥块含量的检验。
参考答案：对
既能化痰消痞利水而除痞满，又能降肺胃之气的药物是（）
A.百部
B.前胡
C.旋覆花
D.款冬花
E.白前
0n a vessel, the keel is the primary strength member of the lower hull form in which direction?（）.
A.transverse
B.disagonal
C.longitudinal
D.vertical
