当地基受力层范围内有软弱下卧层时，应按照（）验算。 - 查题网

>> 成人高等教育 / 土力学与地基基础

成人高等教育 / 土力学与地基基础

正确率：100%

当地基受力层范围内有软弱下卧层时，应按照（）验算。

A、
pz+pcz＜faz
B、
pz+pcz=faz
C、
pz+pcz≤faz
D、
pz+pcz≥faz

积分

土力学与地基基础

参考答案：

点击查看答案

佳题速递：

药品经营企业的“两证一照”指（）。医药商品经营与管理

establish a _ _ _ _ _ _ _ _ _ _ 大学英语1

扩张性的财政政策主要措施有（）。财政学

19世纪初，大肆向中国走私鸦片的国家是？中国近现代史纲要

下面属于标签选择器的是（） Html+CSS网站设计

阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．4. Why did the country mentioned in the passage suffer from floods and starvations? A、 A. Because it set up an empire. B、 B. Because it fell to pieces. C、 C. Because it turned its trees into warships. D、 D. Because it spent too much money on wars.大学英语1