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问题 多选题

下列说法不正确的是（　　）

A．石油的炼制过程都是化学变化

B．煤是工业上获得芳香烃的一种重要来源

C．石油经过常、减压分馏及裂化等工序炼制后即能得到纯净物

D．煤通过液化和气化处理能减少环境污染

答案

AC

单项选择题 A1/A2型题

雌激素的生理功能是（）

A.促进卵泡和子宫发育

B.降低子宫对缩宫素的敏感性

C.减少输卵管上皮细胞的活动

D.使 * * 上皮细胞内糖原减少

E.促进体内水钠排泄
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单项选择题

For the people who have never traveled across the Atlantic the voyage is a fantasy. But for the people who cross it frequently one crossing of the Atlantic is very much like another, and they do not make the voyage for the (56) of its interest. Most of us are quite happy when we feel (57) to go to bed and pleased when the journey (58) . On the first night this time I felt especially lazy and went to bed (59) earlier than usual. When I (60) my cabin, I was surprised (61) that I was to have a companion during my trip, which made me feel a little unhappy. I had expected (62) but there was a suitcase (63) mine in the opposite corner. I wondered who he could be and what he would be like. Soon afterwards he came in. He was the sort of man you might meet (64) , except that he was wearing (65) good clothes that I made up my mind that we would not (66) whoever he was and did not say (67) . As I had expected, he did not talk to me either but went to bed immediately.
I suppose I slept for several hours because when I woke up it was already the middle of the night. I felt cold but covered (68) as well as I could and tried to go back to sleep. Then I realized that a (69) was coming from the window opposite. I thought perhaps I had forgotten (70) the door, so I got up (71) the door but found it already locked from the inside. The cold air was coming from the window opposite. I crossed the room and (72) the moon shone through it on to the other bed. (73) there. It took me a minute or two to (74) the door myself. I realized that my companion (75) through the window into the sea.

A. treat together well B. pass together well
C. get on well together D. go by well together
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