同一品种、类型和规格的木门窗、金属门窗、塑料门窗及门窗玻璃每( )樘
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A.60
A.60
A.60
B.80
B.80
B.80
C.100
C.100
C.100
D.120
D.120
D.120
参考答案:
A.60
A.60
A.60
B.80
B.80
B.80
C.100
C.100
C.100
D.120
D.120
D.120
参考答案: