水冲洗时,管道内应有足够的流量,水冲洗流速一般不小于()。
A、3m/s
B、2.5m/s
C、2m/s
D、1.5m/s
参考答案:D
()是保险人将其承担的保险业务转移给其他保险人进行分担的保险。
A.再保险
B.共同保险
C.重复保险
D.不足额保险
If you let challenges and difficulties benefit ______ depress you, much more can be accomplished than you thought possible.
A.more than
B.rather than
C.less than
D.other than