下列描述劲性水泥土搅拌桩的适用条件错误的是（）。 A.水泥土搅_爱下问搜题

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问题单项选择题

下列描述劲性水泥土搅拌桩的适用条件错误的是（）。

A.水泥土搅拌桩法为基础

B.对于含砂卵石的地层可直接采用

C.适合于以粘土和粉细砂为主的松软地层

D.适合应用水泥土搅拌桩的场合都可以使用劲性桩法

答案

参考答案：B

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完形填空。
My son Joey was born with club feet (畸形足) . The doctors told us that with ___1___ he would be able to walk 2 but would never run very well. The first three years of his 3 were spent in surgery(手术) . By the time he was eight, you wouldn't know he had a 4 when you saw him walk. The children in our 5 ran around as most children do during play,and Joey would jump right in and run and play,too. We never told him that he probably wouldn't be 6 to run as well as the other children. So he didn' t know. In seventh grade he 7 to go out for the cross-country team. Every day he trained with the team. He worked harder and ran more than any of the others. Perhaps he 8 that the abilities that seemed to come 9 to so many others did not come naturally to him. 10 the entire team runs, only the top seven runners have the 11 to score points for the school. We didn't tell him he probably would never make the team, so he didn't know. He 12 to run four to five miles a day , every day-even the day he had a fever. I was 13 , so I went to look for him after school. I found him running alone. I asked him how he felt. " 14 ," he said. He had two more miles to go. The 15 ran down his face and his eyes were glassy from his fever. Yet he looked 16 ahead and kept running. We never told him he 17 run four miles with a fever. So he didn't know. Two weeks later the names of the team runners were 18 . Joey was number six on the list. Joey had made the team. He was in seventh grade-the other six team members were all eight-graders. We never told him he couldn't 19 to make the team. We never told him he couldn't do it. We never told him he couldn't do all those things. So he didn't know. He 20 did it.
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单项选择题

蓄水试验第四遍涂料涂刷干燥（）以上后，才能进行蓄水试验，蓄水高度一般为50～100mm，蓄水时间24～48h，当无渗漏现象时，才能进行刚性保护层施工。

A.12h

B.24h

C.36h

D.48h