若计量槽的容积为40m3，则能装（）t的粗苯。
A、30
B、35
C、40
D、45
参考答案：B
By 2015, China plans to have its own Global Positioning System ( GPS) _____ more than 30 satellites. [ ]
A. made of
B. made from
C. made up of
D. made out
在铸钢浇注系统中，唯一允许安放滤网的地方是直浇道的（）。
