同一品种、类型和规格的木门窗、金属门窗、塑料门窗几门窗玻璃没（）樘应划分为一个检验批
A.100
B.300
C.50
D.150
参考答案：A
—What do you think of the subway?
—It's _____. [ ]
A. inexpensive
B. active
C. beautiful
D. convenient
进入罐区开阀前，必须清楚作业罐的罐存量。
