中低压容器本体形状与结构形式最为常用的是()。
A.锥形
B.圆筒形
C.球形
D.箱形
参考答案:B
I was crazy because it _____me two hours to get_____ in the restaurant the other day.
A.took, served
B.cost, serving
C.took , serving
D.spent, served
稻谷:大米
A.核桃:桃仁
B.棉花;棉子
C.西瓜:瓜子
D.枪:子弹