问题
单项选择题
下列几种岩石组合，常可形成（）类型的地下水。1．粘土覆盖在砂层上；2．页岩覆盖在砂岩上；3．页岩覆盖在溶蚀岩上；4．致密不纯的灰岩覆盖在溶隙发育的灰岩上；5．致密的岩流覆盖在裂隙发育的基岩上。
A.潜水
B.承压水
C.孔隙水
D.裂隙水
答案
参考答案：B
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下列几种岩石组合，常可形成（）类型的地下水。1．粘土覆盖在砂层上；2．页岩覆盖在砂岩上；3．页岩覆盖在溶蚀岩上；4．致密不纯的灰岩覆盖在溶隙发育的灰岩上；5．致密的岩流覆盖在裂隙发育的基岩上。
A.潜水
B.承压水
C.孔隙水
D.裂隙水
参考答案：B
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| One can have many experiences, but the one I never forget is my bicycling trip in Taiwan. When we were going to 1 school,my teacher suggested that we could do something special to remember our school life. After a long discussion,we decided to travel 2 the whole island by bicycle. We began to get some training to make our 3 stronger. So we ran 3,000 meters after school. At first, I could only run about 2,000 meters. My legs were heavy like steel and my heart 4 very fast. After two weeks of training, I could run 3,000 meters 5 . We started our journey (旅行) the last week of July. We rode about 100 kilometers 6 . It was very hot and our clothes were 7 all the time. One day, we were riding up the mountain when there was 8 wrong with my bicycle, and I fell and was hurt. I almost gave up and didn't want to 9 the trip, but I tried to solve the problems successfully and kept on. Fifteen days passed, we returned to school again. We were so 10 . This experience was like a miracle (奇迹) for me. I learned that I could do what I want to. | ||||
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