油压装置压油槽工作时其内应充油和压缩空气,油约占总容积的()。
A.1/2左右;
B.1/4左右;
C.1/3左右;
D.2/3左右。
参考答案:C
上海著名商业街“四街”的是()。
A.淮海中路
B.南京西路
C.多伦路
D.四川北路
E.福州路
The school authority had a discussion regarding ______ they should set up more scholarships to meet the increasing demands.
A.whether
B.what
C.that
D.whom