较之净额结算,实时全额结算具有明显的效率和安全优势。()
参考答案:对
The engine of the ship was out of order and the bad weather________ the helplessness of the crew at sea.
A.added to
B.resulted from
C.turned out
D.made up
表示病毒大小的常用单位()。
A、cm
B、nm
C、mm