问题
单项选择题
重金属离子渗入土壤的深度一般（）。
A、不超过20m
B、不超过50m
C、在50m以上
D、不能确定
答案
参考答案：B
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重金属离子渗入土壤的深度一般（）。
A、不超过20m
B、不超过50m
C、在50m以上
D、不能确定
参考答案：B
| 完形填空 | |||
| In the depths of my memory, many things I did with my father still live. These things have come to represent, in fact, what I call __1__ and love. I don't remember my father ever getting into a swimming pool. But he did __2__ the water. Any kind of __3__ ride seemed to give him pleasure. __4__ he loved to fish; sometimes he took me along. But I never really liked being on the water, the way my father __5__. I liked being at the water, moving through it, __6__ it all around me. I was not a strong __7__, or one who learned to swim early, for I had my __8__. But I loved being in the swimming pool close to my father's office and __9__ those summer days with my father, who __10__ come by on a break. I needed him to see what I could do. My father would stand there in his suit, the __11__ person not in swimsuit. After swimming, I would go __12__ his office and sit on the wooden chair in front of his big desk, where he let me __13__ anything I found in his top desk drawer. Sometimes, if I was left alone at his desk __14__ he worked in the lab, an assistant or a student might come in and tell me perhaps I shouldn't be playing with his __15__. But my father always __16__ and said easily, "Oh, no, it's __17__." Sometimes he handed me coins and told me to get __18__ an ice cream... A poet once said, "We look at life once, in childhood; the rest is __19__." And I think it is not only what we "look at once, in childhood" that determines our memories, __20__the person who, in that childhood, looks at us. | |||
| ( )1. A. desire ( )2. A. avoid ( )3. A. boat ( )4. A. But ( )5. A. expected ( )6. A. having ( )7. A. swimmer ( )8. A. hopes ( )9. A. spending ( )10. A. should ( )11. A. next ( )12. A. away from ( )13. A. put up ( )14. A. the moment ( )15. A. fishing net ( )16. A. stood up ( )17. A. fine ( )18. A. the student ( )19. A. memory ( )20. A. as | B. joy B. refuse B. bus B. Then B. desired B. leaving B. rider B. faiths B. saving B. would B. only B. out of B. break down B. the first time B. office things B. set out B. strange B. the assistant B. wealth B. but | C. anger C. praise C. train C. And C. wished C. making C. walker C. fights C. wasting C. had to C. other C. by C. play with C. while C. wooden chair C. showed up C. terrible C. myself C. experience C. or | D. worry D. love D. bike D. Still D. did D. getting D. runner D. fears D. ruining D. ought to D. last D. inside D. work out D. before D. lab equipment D. turned out D. funny D. himself D. practice D. and |