压传动是借助于处在（）容积内的（）来传递能量或动力。

一个圆柱的侧面积是28.26平方厘米，底面直径是10厘米，它的高是（    ）厘米。

NEW YORK （Reuters Health）--Two years after New York City declared war on artificial trans fats（人造反式脂肪酸）, nearly all city restaurants had successfully cut the fats from their menus, health officials reported Monday.

In December 2006, the city’s Board of Health decided to launch a gradual trans-fat phase-out （逐步淘汰）from all licensed eating establishments--including restaurants, school cafeterias and street vending spots. Then many cities like Washington, San Francisco and Philadelphia, reflected it actively.

By November 2008, more than 98 percent of city restaurants had stopped using artificial trans fats for cooking, frying and baking, researchers with the city’s health department report in the Annals of Internal Medicine.

Trans fats have become notorious because they not only raise so-called “bad” LDL cholesterol （胆固醇）, as the fats in animal products do, but also lower levels of so-called “good”HDL cholesterol.

While some meats and dairy products naturally contain trans fat, most trans fats in people’s diet are artificial; they are formed when manufacturers add hydrogen to vegetable oil to make it become solid. These so-called partially hydrogenated oils were main products in foods, like crackers, cookies and pastries, and widely used by restaurants in cooking, frying and baking.

When the restriction was first adopted, the researchers note, some critics claimed it was an Orwellian measure, while others worried that restaurants would have a tough time finding suitable trans-fat replacements.                                                     

However, the transition has been smooth, Angell’s team writes, declaring that trans-fat restriction “is now a largely unnoticed part of New York City life.”

Ridding the food supply of trans fats, the researchers write, could potentially improve the cholesterol levels of millions of people.

1. In which city the local health department first decide to stop artificial trans fats?

A. Washington.    B. San Francisco.     C. Philadelphia.      D. New York.

2. We can learn from the third paragraph that ________.

A. in the city most people still use artificial trans fats

B. only a few restaurants still use trans fats and the decision win most people’s support

C. the city’s decision proves to be useless

D. many people think using artificial trans fats is not so bad

3. The underlined word “notorious” in the fourth paragraph means ________.

A. having a very bad reputation          B. having a very good reputation

C. nutritious                         D. delicious

4. What is the main idea of the passage?

A. New York restaurants are nearly all trans-fat-free （无……有）

B. None of the restaurants in the U.S can use trans fats.

C. Most of the restaurants still use trans fats once in a while.

D. Trans fats are bad for health.

垂流与涂料的密度、（ ）以及湿涂膜的厚度有关。

A．体积

B．粘度

C．剪切力

D．重力

婴儿期引起无热惊厥最常见的原因是（）

A.高血钙

B.高血钾

C.低血钠

D.低血钾

E.低血钙

某公司中标一座地铁车站工程，车站基础全长约212m，宽度21m，开挖深度为16m，采用明挖法施工。围护结构为地下连续墙，采用锁口管接头；设三道φ609钢管支撑。场地土层自上而下分别为填土、黏土和粉土地层。地下水位于地表下Im左右。基坑北侧有三条需要重点保护的地下管线，其中一条横穿基坑；东侧基坑一倍开挖深度范围内邻近一座条形基础的老旧房屋，开挖时如果变形过大对其结构安全的影响很严重；基坑南侧邻近一条市政道路。

项目部编制了施工组织设计，拟在基坑内侧采用管井降水，降水井按每250m2一口管井布置。方案中的地下连续墙施工工序为：开挖沟槽→修筑导沟→开挖沟槽（注入泥浆）→清除槽底淤泥和残渣→吊放接头管。项目部编制了基坑监测方案，并且决定自行监测，监测方案由上一级主管部门签字认可后实施。

基坑开挖至粉土时，由于地下连续墙接头夹泥而发生渗漏，项目采取导管引流并且用聚氨酯封堵后没有效果；渗漏渐渐导致水土流失，基坑后土体出现明显沉陷。如果继续发展可能会导致基坑坍塌。

针对施工过程中出现的渗漏情况，项目部应采取什么措施？