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【单选题】

Once upon a time there lived a fisherman in a village near the sea. One day the fisherman set out in a small boat. After he had got to a good place for fishing, he threw a long rope, then the rope became very heavy. He thought it seemed too heavy to be a fish, and began to draw in the rope.
When the hooks(鱼钩)came out of the water, he was surprised , for the hooks were holding some golden chains (链子). When he pulled them, more and more golden chains came out. Soon there was a long pile of golden chains in his boat.
"I shall be very rich, "he said to himself. "I can sell the chains for a lot of money. With the money I shall buy a new boat and some new nets. I shall build a house. I shall be the richest man in the world."
He went on drawing in more golden chains. But he felt so pleased that he did not notice what was happening to his boat. It began to sink(下沉). As he was pulling the golden chains, the boat sank into the sea. He lost not only all the golden chains but also his boat and his life.
What did’ the fisherman think when he got so many golden chains

A.
He thought the golden chains were useless.
B.
He thought he would be rich.
C.
He felt terrible.
题目标签:下沉
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参考解析:
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举一反三

【单选题】沉井下沉中,不排水下沉的优点不包括______。\r\n

A.
设备简单、系统简化、能抓取大块卵石
B.
耗电量小
C.
将下沉与排渣两道工序合一
D.
在流硫层及黏土层下沉效果较高

【单选题】下列属于不排水下沉的方法是( )。

A.
空气吸泥下沉
B.
人工挖土下沉
C.
机具挖土下沉
D.
水下机具下沉

【单选题】A.下沉 B.侧方移动 C.前后翘动 D.左右摆动 E.弹跳

A.
一患者,缺失,余留牙正常。可摘局部义齿设计为三臂卡环,舌杆大连接体。此义齿最容易出现的不稳定表现是()

【单选题】颗粒越大,装于船舱内的散装谷物下沉()。

A.
越大
B.
越小
C.
与颗粒大小无关
D.
与颗粒大小关系无法确定