下列选项中不能证明地球是球体的是（ ） A．太阳东升西落 B．地球卫星照片 C．

布氏硬度中的HBS法适用于测定（）材料。

Ⅰ普通碳钢；Ⅱ淬火钢；Ⅲ铸铁；Ⅳ工具钢；Ⅴ有色金属；Ⅵ渗碳钢。

A．Ⅱ+Ⅲ+Ⅴ

B．Ⅰ+Ⅱ+Ⅴ

C．Ⅱ+Ⅳ+Ⅵ

D．Ⅰ+Ⅲ+Ⅴ

为了了解鼠妇的生活环境，小明同学在校园内寻找鼠妇并记录了在各处发现的数量（结果如表）．分析他的记录可知，适于鼠妇生活的环境特点是（　　）

A．阴暗、干燥

B．阴暗、潮湿

C．明亮、低温

D．明亮、高温

Soaring divorce rates around the globe are affecting the environment, American researchers suggested in a study released Monday.

Michigan State University researcher Jianguo “Jack” Liu and his assistant Eunice Yu said the increasing number of divorces leads to more households with fewer people and greater consumption of water and energy. They said housing units require space, construction materials and fuel to heat and cool, regardless of the number of inhabitants.

For example, in the United States in 2005, divorced households consumed an extra 73 billion kilowatt hours of electricity and 627 billion gallons of water. An additional 38 million extra rooms required heating and lighting that same year due to divorced households.

“A married household actually uses resources more efficiently than a divorced household”, Liu said. He said that in cohabitating households, people will watch the same television, share the air conditioning and heat and use the same refrigerator, all things that use energy at a regularly stable rate regardless of the number of users.

Liu said he was not condemning divorce, “Some people really need to get divorces.” He said that cohabitation was simply a more environmentally friendly option. Additionally, the researchers noted that trends other than divorce are also changing family living structures, such as the end of multiple generations of a family sharing a home and people remaining single longer.

“People’s first reaction to this research is surprise, and then it seems simple.” Liu said in a release, “But a lot of things become simple after research is done. Our challenges were to connect the dots and quantify their relationships. People have been talking about how to protect the environment and refuse climate change, but divorce is an overlooked factor that needs to be considered.”

He said the increasing energy demands caused by divorce should be considered by governments when they are creating environmental policies.

This passage is mainly meant to ____.

A. inform the reader of the increasing divorce in America

B. emphasize the importance of protecting the environment

C. tell people the effect divorce has on the environment

D. appeal to married people to keep their households

According to the passage, what’s the attitude of Mr. Liu towards divorce?

A. Supportive       B. Objective.       C. Indifferent.       D. Unclear.

It can be inferred from the passage that ____.

A. divorced households will promote the sales of products

B. married households are more willing to protect the environment

C. divorced households contribute more to the society’s development

D. divorce is not taken into account when people are protecting the environment

From this passage we can find that ____.

A. divorce rates are quickly rising globally these years

B. cohabiting households will increase consumption of water and energy

C. to divorce is a wise option according to the passage

D. the end of multi-generations of a family will save energy

项目的前评价的特点是（）

A、注重项目执行前和执行中绩效的提高

B、注重结果，一般是在项目完工后进行

C、对要预批项目所产生的可能结果进行评价

D、对项目的综合信息和结果进行评价

Come on, my fellow white folks, we have something to confess. Out with it, friends, the biggest secret known to whites since the invention of powdered rouge: welfare is a white program. The numbers go like this: 61% of the population receiving welfare, listed as "means-tested cash assistance" by the Census Bureau, is identified as white, while only 33% is identified as black. These numbers notwithstanding, the Republican version of "political correctness" has given us "welfare cheat" as a new term for African American since the early days of Ronald Reagan.

Our confession surely stands: white folks have been gobbling up the welfare budget while blaming someone else. But it’s worse than that. If we look at Social Security, which is another form of welfare, although it is often mistaken for an individual insurance program, then whites are the ones who are crowding the trough. We receive almost twice as much per capita, for an aggregate advantage to our race of $10 billion a year--much more than the $3. 9 billion advantage African American gain from their disproportionate share of welfare. One sad reason: whites live an average of six years longer than African Americans, meaning that young black workers help subsidize a huge and growing "over-class" of white retirees. I do not see our confession bringing much relief. There’s a reason for resentment, though it has more to do with class than with race. White people are poor too, and in numbers far exceeding any of our more generously pigmented social groups. And poverty as defined by the government is a vast underestimation of the economic terror that persists at incomes--such as $ 20,000 or even $ 40,000 and above--that we like to think of as middle class.

The problem is not that welfare is too generous to blacks but that social welfare in general is too stingy to all concerned. Naturally, whites in the swelling "near poor" category resent the notion of whole races supposedly frolicking at their expense. Whites, near poor and middle class, need help too--as do the many African Americans.

So we white folks have a choice. We can keep pretending that welfare is black program and a scheme for transferring our earnings to the pockets of shiftless, dark-skinned people. Or we can clear our throats, blush prettily and admit that we are hurting too--for cash assistance when we’re down and out, for health insurance, for college aid and all the rest. Racial scapegoating has its charms, I will admit: the surge of righteous anger, even the fun--for those inclined--of wearing sheets and burning crosses. But there are better, nobler sources of white pride, it seems to me. Remember this: only we can truly, deeply blush.

The function of the last paragraph is（）

A. to reverse the previously expressed thoughts

B. to advance the final argument

C. to heap praises upon the pride of the whites

D. to echo the thesis statement