问题 单项选择题

以下各项是乳化液泵蓄能器充气所必须遵守的程序,哪一项不正确()。

A、取下充气阀的保护帽

B、通过充气工具的手柄,徐徐打开压下气门芯,缓慢地充入氮气,待气囊膨胀至菌形阀关闭,充气速度方可加快,并达到所需的充气压力

C、装上带压力表的充气工具,并与充气管联通

D、操作人员在起闭氮气瓶气阀时,应站在充气阀的前面,徐徐开启氮气瓶气阀

答案

参考答案:D

单项选择题
完形填空

第二节任务型阅读(共10小题;每小题1.5分,满分15分)
认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
注意:每个空格只填1个单词。请将答案写在答题卡相应题号的横线上。
Recently 3 kinds of foods are very popular in the US.
Convenience Foods
Instead of buying only fresh foods, Americans buy many more convenience foods. These are foods which are ready partly or completely prepared. There are also many canned convenience foods, such as soups and vegetables.
Convenience foods save time and trouble. They are popular with people who are busy or who don't like cuisine or washing dishes. But they often cost more money than fresh, unprepared foods and may contain man-made additives. Also they don't taste as good as home cooked foods.
Health Foods
In the 1960s, a "back-to-the earth" movement was started by young people in the US. The movement was a reaction against the harmful effects of technology. Many people now prefer natural and organic foods to the prepared foods sold in food stores.
Diet Foods
These, days Americans are more and more concerned with their weight. American supermarkets sell a variety of diet foods as diet soft drinks, diet candy, and diet salad dressings. Each year dozens of new diets are popularized. However, some of the diet foods are unbelievable. There are tricks in their advertisements.
Three popular foods in the US
Kinds of foods
Convenient Foods
Health Foods
Diet Foods
People who like
the foods
Those who are not 66 ___.
Those who aren’t 67 ____
of cooking or washing dishes
Those who 68 ___
the harmful effects
of technology.
Those who care more
about their 69 ______
advantages
Save trouble and 70 _____
Be good for one’s
health
71 _____ people from
getting fat
72 ________
Cost more73 _____ May contain man-made additives
Not 74 _____ as good as home –made foods
unknown
Not all of the diet foods
Are75 _____