喷砂的喷嘴尺寸可用下列方法进行检查:()A、吸水试验 B、ASTMD-4248 C、

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问题:

喷砂的喷嘴尺寸可用下列方法进行检查:()

A、吸水试验

B、ASTMD-4248

C、喷嘴孔径测试器

D、卷尺

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六(2)班共有48名同学,其中男、女生人数的比可能是(  )
A.4:6B.5:7C.8:9
题型:单项选择题

阅读下面的短文,然后按照要求写一篇150词左右的英语短文。

China bans free plastic bags

CHINA began a crackdown on plastic bags, banning production of thin bags and forbidding supermarkets and shops from handing them out free, Tuesday, June 1, 2008.

Chinese people use up to 3 billion plastic bags a day and the country has to refine 5 million tons of oil every year to make plastics used for packaging, according to a report on the Website of China Trade News, and fails to get rid of them properly, wasting valuable oil and littering the country, the State Council said in a notice posted on the Central Government’s Website.

“Our country consumes huge amounts of plastic bags every year. While providing convenience to consumers, they have also caused serious pollution, waste of energy and resources, because of too much use and inadequate recycling,” it said.

Worries about pollution are growing among ordinary citizens, as years of breakneck growth has a very bad effect on the country’s air and water, but the new ban may not be universally welcomed.

1. 请用30个词概括短文的要点;

然后用约120个词就“‘为了环保和节能,禁止商场免费提供塑料袋’的禁令与方便老百姓日常生活的矛盾”这一中心发表看法,并包括如下要点:

a) 你对国家这一禁令的看法,并说明你的理由;

b) 禁令实施后,消费者该怎么办?

[写作要求]

可以使用实例或分项论述的方法支持你的论点,也可以参照阅读材料的内容,但不得直接引用原文中的句子;

概括准确,语言规范,内容合适,篇章连贯。

题型:单项选择题

新时期,依据宪法规定,全国人大通过了一系列的法律,逐步形成了以宪法为核心的中国特色社会主义法律体系,其最重要的作用是[ ]

A.为依法治国奠定了基础

B.加强立法工作

C.推行普法教育活动

D.提高了公民的法律意识

题型:单项选择题

何种口腔不良习惯可在4~6岁以后渐减少而自行消失()。

A.吮指习惯

B.舌习惯

C.唇习惯

D.咬指习惯

E.睡眠习惯

题型:单项选择题

铝酸钠溶液中所含苛性碱与AL2O3质量比为苛性比值。

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