题目内容

连接在不同交换机上的、属于同一vlan的数据帧必须通过trunk传输。

A. 对
B. 错

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If you hadn’t gone with Tom to the party last night,______.

A. you would meet John already
B. you won’t have missed John
C. you will have met John
D. you would have met John

Supposing this ship ______ , do you think there would be enough life jackets for all the passengers?

A. was sinking
B. has sunk
C. were to sink
D. sunk

The insects would devour all our crops and kill our flocks and herds, if ______ for the protection we get from insect-eating animals.

A. it is not
B. it were not
C. were it not
D. they were not

The teacher suggested that each student ______ a plan for the vacation.

A. made
B. make
C. makes
D. will make

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