普通会员钱经理对于一条求购mp4的信息,他有几次机会使用“给我留言”报价功能?()
A.没有限制
B.零次
C.三次
D.五次
参考答案:C
阅读短文,给下列句子排序。
I went to a park by bike. I flew kites. It was a windy day. Suddenly my kite flew into the lake.
A dog saw the kite. He jumped into the lake and swam to it. Five minutes later, he returned the kite to me.
I was very grateful to him.
( ) I went to a park.
( ) He returned the kite to me.
( ) He swam to the kite.
( ) The dog jumped into the lake.
( ) The kite flew into the lake.
末端试水装置动作后,下列()组件应动作。
A、水流指示器
B、水力警铃
C、压力开关
D、湿式报警阀