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问题 单项选择题

我国海商法规定，承租人应当保证船舶在约定航区内的安全港口或地点之间从事约定的海上运输。承租人违反这一规定的，出租人有权（）。

A．解除合同

B．要求赔偿因此遭受的损失

C．留置承租人的货物

D．A和B

答案

参考答案：D

单项选择题

The usual way to ensure reliable delivery is to provide the (71) with some feedback about what is happening at the other end of the line. Typically, the protocol calls for the receiver to send back special (72) flame bearing positive or negative (73) about the incoming frames. If the sender receives a positive acknowledgement about a frame, it knows the frame has arrived safely. On the other hand, a negative acknowledgement means that’ something has gone wrong, and the frame must be transmitted again.

An additional complication comes from the possibility that hardware troubles may cause a flame to (74) completely. In this case, the receiver will not react at all, since it has no any reason to react. It should be clear that a protocol in which the sender transmits a frame and then waits for an acknowledgement, positive or negative, will hang forever if a frame is ever lost due to, for example, (75) hardware.

（73）处应填（）。

A．application

B．connection

C．stream

D．acknowledgement
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单项选择题

我国乡级人大的任期由3年修改为5年的时间是（）

A．1988年

B．1993年

C．1999年

D．2004年
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