卫生行政强制包括（）两个方面。A.卫生行政强制措施 B.卫生行政强制执行 C.卫生行

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，选项中有两项多余选项。（共五小题；每小题5分，满分10分）

—How often do you use the Internet?

—  1  But I usually use it o check my email. I don’t often surf the Internet. You use the Internet a lot, don’t you?

—   2  

—So, you’re working online eight hours a day. It can be awful when the connection is poor.

—    3  Sometimes I also help others in the office if they’re having trouble online.

—How useful do you think the Internet is as a source of information?

—I think it’s useful.    4   The information online may be false. You don’t see what you buy online until you actually get it.

—   5

—We usually find the website of shops, then visit the shop and buy when we’ve seen the products.

A．But there are two big problems.

B．Yes. I usually surf the Internet to look through the news.

C．Why do you want to buy something online?

D．Yes. I use it to find products at the lowest price for my company.E. Yes. I like the job though.

F. How do you solve the problems when shopping online?

G. I use it almost every day.

国家 * * 胡 * * 2008年7月8日在中国、印度、巴西、南非和墨西哥发展中国家领导人集体会晤时指出：我们应该继续本着积极务实、求同存异的原则，推动南北国家建立平等、互利、合作、共赢的新型伙伴关系。这体现了（　　）

①主要矛盾和次要矛盾是对立统一的　②矛盾普遍性和特殊性是辩证统一的　③矛盾主次方面是相互转化的　④矛盾的双方是既对立又统一的

A．③④

B．②④

C．①④

D．①②

生物与环境相互依赖、相互影响。下列哪一项体现了生物影响环境？

A．人间四月芳菲尽，山寺桃花始盛开

B．朵朵葵花向太阳

C．千里之堤，溃于蚁穴

D．种豆南山下，草盛豆苗稀

It is clear that some chemicals can damage the health of animals and humans. (1) , this is not the only problem that (2) be caused by the careless use of chemicals. Chemicals can also (3) the ecological balance of the environment. If the ecological balance is disturbed, the results can be (4) serious.

The (5) of DDT illustrates the problem. DDT, a chemical which kills insects, at first seemed to be a perfect answer (6) many problems. It would control insects that caused dangerous diseases, (7) insects that caused billions of dollars of damage to crops every year. Governments permitted and even (8) the use of DDT. Farmers in many countries (9) to spray it on their crops. The (10) results were good: Damage to crops (11) down, and profits went up. However, the chemical had effects which the scientists didn’t see in (12) . First, it also killed insects which were the (13) enemies of the harmful insects and which were therefore beneficial to farmers. Second, and perhaps worse, DDT did not kill (14) harmful insect. A few insects had natural resistance to the chemical. They (15) and reproduced in large numbers. In a few years there were large numbers of insects which were not (16) by DDT, and there were (17) insects which could act as natural (18) on these new "super-insects". Finally, it became clear that DDT was not solving the insect problem. In fact, it was making the problem worse. It (19) became necessary to find a second (20) for the effects of the first.

10（）

A.fast 

B.immediate 

C.moment 

D.last

下列叙述中，正确的是（）

A.蔗糖和麦芽糖水解的产物都是2分子葡萄糖

B.脱氧核糖、葡萄糖、核糖既存在于植物细胞内，又存在于动物细胞内

C.细胞中的有机物都能为细胞的生命活动提供能量

D.蛋白质是生命活动的主要承担者，也是最基本的生命系统