问题
单项选择题
换填法处理软土或杂填土的主要目的是（）
A．消除湿陷性
B．置换可能被剪切破坏的土层
c．消除土的胀缩性
D．降低土的含水量
答案
参考答案：B
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换填法处理软土或杂填土的主要目的是（）
A．消除湿陷性
B．置换可能被剪切破坏的土层
c．消除土的胀缩性
D．降低土的含水量
参考答案：B
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| One day when Jamie came home after school, his mother had a worried look on her face. He knew she was thinking of the 1 ."It's bad out there. Black clouds are coming from the sea," Jamie said. "Yes. I'm thinking of those fishing boats at sea," she said. At that moment, the 2 went out. Jamie and his mother were in the dark. "The coastline (海岸) will be in the dark," Jamie's mother said. She got more worried." 3 always come in threes. I 4 my best glasses this morning, and my sister has a cold." "Now, don't worry, mum. They're 5 to come through this all right." But Jamie really worried about those fishing boats himself. The fishing boats would 6 the cove (海湾) in the dark. Jamie took flares (火焰信号弹) and rushed into the wind. He started to climb the hills near the coastline. He 7 himself up hand over hand. At last he reached the top. He 8 three times. On the fourth try he fired off one of the flares. It rose and cut into the black sky in bright light. Then he saw an answering flare up at sea. Jamie fired off two more. He saw another answering flare up, then another, then another. The answering flares from the fishing boats showed they 9 the entrance to the cove but then changed their way and were now sailing into the cove. They were almost home. Jamie helped 10 the fishermen of the village. | ||||
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