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【多选题】

下列哪些是三峡大坝选址三斗坪坝址的原因?

A.
坝基岩体完整,渗透性差
B.
坝基岩体结构单一,稳定性好
C.
地势低平,开挖量少
D.
地势开阔,易于导流
题目标签:大坝三峡大坝
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【单选题】It __________ eight years to build the Dam(大坝) from 1998 t0 2006.A.spends B.costs C

A.
4.It __________ eight years to build the Dam(大坝) from 1998 t0 2006. A.spends
B.
costs
C.
paid
D.
took

【单选题】Text 5 The air surrounding us is important to everyone. Without air, we could not exist. Everyone understands that. But air is necessary in many other ways — ways that are not always so ...

A.
We all know that we can’t exist without air.
B.
Without air, we can’t hear anything.
C.
Men have studied electricity in the air for centuries.
D.
There’s huge energy in the air surrounding the earth.

【单选题】三峡大坝是以下哪种坝型

A.
混凝土重力坝
B.
重力拱坝
C.
空腹拱坝
D.
面板堆石坝

【多选题】大坝定检报告的附件包括()

A.
重要函件公文
B.
收集的现场资料与试验数据
C.
专题论证
D.
咨询报告