我国安全电压额定值的等级是（）伏。_爱下问搜题

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问题填空题

我国安全电压额定值的等级是（）伏。

答案

参考答案：42、36、24、12、6

完形填空

The story is told about what happened on a flight between a passenger and an air hostess. The passenger rang and told the air hostess (乘务员) that he needed a cup of __21__to take his medicine when the plane just took off. She told him that she would_22__him the water in ten minutes.
Thirty minutes later, when the passenger’s ring for_23__sounded, the air hostess was in a hurry. She was kept so_24__that she forgot to deliver (送) him the water. As a result, the passenger was_25__to take his medicine.She_26__over to him with a cup of water, but he_27__it.
In the following hours on the_28__, each time the air hostess passed by the _29__ she would ask him with a smile_30__he needed help or not. But the passenger__31__paid attention to her.
When the passenger was going to get__32__the plane, he asked the air hostess to__33__him the passengers’ booklet (意见薄). She was very__34__. She knew he would write down_35__words, which might result in the loss of her job. _36__with a smile she handed it to him.
Off the plane, she_37__the booklet, and cracked a smile, _38__the passenger put it, “On the flight, you asked me whether I need help or not for twelve times_39__. How can I refuse your twelve sincere（真诚的） smiles?”
That’s__40__! Who can refuse twelve sincere smiles from a person?

单项选择题

某区段货物列车重量标准为4000t，列车长度标准为70•0，现该区段某一区段列车实际重量为1218t，计长69.6，则该列车为（）。

A.满轴列车

B.超重列车

C.欠轴列车

D.超长列车