问题
完形填空
阅读下面短文,从短文后所给的A、B、C、D四个选项中,选出一个可以填入空白处的最佳选项,并用铅笔把答题卡上对应题目的答案标号涂黑。 In Twain, many people know what a “motorpool” means. It is 36 known as a place for the maintenance(维修)of official business and government cars. 37 it is a place for vehicle maintenance. More than ten years ago I came to America on business and I took advantage of the 38 to visit my friend. My friend drove a car to 39 me at the airport, and took me to his home. Out of the 40 , my friend drove his car into the innermost 41 , which had a sign “carpool only”. I 42 what “carpool” meant. I felt doubted whether he was going to a motorpool. 43 I thought myself clever in asking: “Is there anything wrong with the car?” “Nothing. 44 ?” said he. “Well then, why are you going to carpool?” I 45 . My friend couldn’t help 46 and told me that“carpool”refers to the lane that only the cars with two or more 47 can drive in. I felt rather embarrassed on 48 that. After dinner, my friend’s neighbor came over to ask whether he 49 “carpool” the next day. “ 50 ,” my friend said, “I will accompany my friend to go shopping tomorrow.” I was 51 again, wondering why he could not “carpool” with him since we had “carpooled” 52 . My friend explained to me again that the “carpool” that his neighbor 53 meant they in turn drove the car to work so as to save energy. The first “carpool” is a noun, 54 the second “carpool” is a verb. It is really 55 for newcomers in America to understand it in a short time.
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答案
小题1:A
小题2:A
小题3:C
小题4:C
小题5:B
小题6:B
小题7:A
小题8:B
小题9:C
小题10:B
小题11:C
小题12:A
小题13:D
小题14:B
小题15:B
小题16:C
小题17:A
小题18:A
小题19:C
小题20:B
2NH3。达到平衡后，测得反应放出的热量为18.4 kJ，混合气体的物质的量为3.6 mol，容器内的压强变为原来的90%。