题目内容:
海船和河船的储备浮力分别约为其满载排水量的( )。
A.20%~25%,10%~15% A.20%~25%,10%~15%
B.25%~30%,15%~20%
B.25%~30%,15%~20%
C.30%~35%,20%~25%
C.30%~35%,20%~25%
D.135%~40%,25%~30%
D.135%~40%,25%~30%
参考答案:
答案解析: