题目内容

本身对皮肤无刺激性且不污染衣服的是

A. 硅酮类
B. 液状石蜡
C. 羊毛脂
D. 花生油
E. 单硬脂酸甘油酯

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The development of society seemingly endows people with the right to savor the whole world, but some people claim that tourism will soon become obsolete for people can enjoy a glimpse of wherever they want to go without even leaving their home. Do you agree with them? Write an essay of about 400 words. You should supply an appropriate title for your essay. In the first part of your essay you should state clearly your main argument, and in the second part you should support your argument with appropriate details. In the last part you should bring what you have written to a natural conclusion or make a summary. Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.

常与凡士林合用以改善其吸水性的是

A. 硅酮类
B. 液状石蜡
C. 羊毛脂
D. 花生油
E. 单硬脂酸甘油酯

能与多数脂肪油或挥发油混合,主要用于调节软膏稠度的是

A. 硅酮类
B. 液状石蜡
C. 羊毛脂
D. 花生油
E. 单硬脂酸甘油酯

CRH2A型动车组避雷器每个基本动力单元1个,全列共()。

A. 3个
B. 2个
C. 1个

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