单选题：The improvements the airlines attempt at include all the fol

题目分类：综合类
题目类型：单选题
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题目内容：

The improvements the airlines attempt at include all the following EXCEPT__________. A．making their seats more comfortabl
B．providing better food during flight
C．showing more movies during the long flight
D．offering sleeperettes to first-class passenger

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答案解析：

Acknowledged as the main cause of hay fever the pollen of ra

Acknowledged as the main cause of hay fever the pollen of ragweed is very bother

分类：综合类题型：单选题

The demand for videodisc systems is expected to be very grea

The demand for videodisc systems is expected to be very great in future years. A

分类：综合类题型：单选题

A whoB whichC whom　　D whose

A whoB whichC whom　　D whose

分类：综合类题型：单选题

请在第（65）处填上最佳答案。

请在第（65）处填上最佳答案。A．communicates B．knows C．hears D．develops

分类：综合类题型：单选题

请在第（55）处填上最佳答案。

请在第（55）处填上最佳答案。

分类：综合类题型：单选题