按从小到大的顺序排列。
17.8 19.4 16.5 18.6 16.8
( )<( )<( )<( )<( )
16.5;16.8;17.8;18.6;19.4
— How much is the new car your brother bought ?
— Well, it should cost ______ 50,000 pounds, but I'm not sure. [ ]
A. exactly
B. totally
C. roughly
D. previously
钻进作业期间,控制系统与防喷器组之间的打开闸板的油管线的压力是多少?()
A、0MPa
B、21MPa
C、10.5MPa
D、3.5MPa