摈榔与焦摈榔是()。
参考答案:两者是中约饮片的不同规格
_______ in the fields on a March afternoon, he could feel the warmth of spring.
A.To walk.
B.Walking
C.Walked
D.Having walked
石墙的灰缝应在最后用( )水泥砂浆统一勾缝。
A.1:0.5B.1:1C.1:2D.1:3