DL429.9-91规定,在绝缘强度测定中,试油注满油杯后,必须静止()min,方可升压试验。
A.3~5
B.5~10
C.10~15
D.15~20
参考答案:C
If you had enough money, what _____? [ ]
A. will you buy
B. would you buy
C. would you have bought
D. will you have bought
计算农业总产值时采用( )
A.部门法
B.生产法
C.企业法
D.产品法