若am=2，an=4，则am + n=__

美国霍普金斯大学的萨拉蒙教授认为鉴别一个组是否是非营利组织有六个关键特征：正规性、私立性、自我治理性、（）、公共利益性。

某校为帮扶学校的留守儿童举行了捐款活动，初三（1）班第一小组八名同学捐款数额（元）分别为：20，50，30，10，50，100，30，50．则这组数据的众数是__________.

阅读理解。

                                                       The way we do things round here

     Some years ago, I was hired by an American bank. I received a letter from the head of the Personnel

Department that started, "Dear John, I am quite pleased that you have decided to join us." That "quite"

saddened me. I thought he was saying "we're kind of pleased you decided to join us although I wish we

had hired someone else." Then I discovered that in American English "quite" sometimes means "very",

while in British English it means "fairly".

     So the first lesson about working in other countries is to learn the language and by that I don't just

mean the words people speak. It is body language, dress, manners, ideas and so on. The way people do

things highlights many of the differences we see between cultures (文化).

     Some of these differences may be only on the surface-dress, food and hours of work-while others

may be deeper and take longer to deal with. Mostly, it is just a question of getting used to the differences

and accepting them, like the climate (气候), while getting on with business.

     Some of the differences may be an improvement. People are more polite; the service is better; you ask

for something to be done and it happens without having to ask again. However, other differences can be

troubling, like punctuality (准时). If you invite people to a party at 7 o'clock your guests will consider it

polite to turn up exactly on time in Germany, five minutes early in the American Midwest, an hour early

in Japan, 15 minutes afterwards in the UK, up to an hour afterwards in Italy and some time in the evening

in Greece. I prefer not to use the word "late" because there is nothing wrong with the times people arrive.

It is simply the accepted thing to do in their own country.

1. The author was unhappy as mentioned in Paragraph 1 because he thought _____.

A. the American bank didn't think much of him

B. the American bank might hire another person

C. it's difficult to get used to American culture

D. it's easy to misunderstand Americans

2. The word "highlights" in Paragraph 2 probably means _____.

A. encourages

B. helps to narrow

C. increases

D. draws attention to

3. According to the author, what should we do with most cultural differences?

A. Ask the native people for help.

B. Understand and accept them.

C. Do things in our own way.

D. Do in-depth research.

4. When invited to a party the people who are usually punctual are _____.

A. Italians

B. Germans

C. Greeks

D. the British

妊娠期乳晕外围皮脂腺肥大形成散布的结节状隆起（）

A.Chadwick征

B.蒙氏结节

C.乳腺增生

D.Braxton-Hicks收缩

E.Hegar征

在当前的音像市场上，正版的激光唱盘和影视盘销售不佳，而盗版的激光唱盘却屡禁不止，销售异常火爆。有的人分析认为这是因为在价格上盗版盘更有优势，所以在市场上更有活力。这说明：

A．要严厉打击盗版光盘

B．正版的激光唱盘和影视盘往往内容呆板，不适应市场的需要

C．市场的监管力度不够

D．与价格的差别相比，正版与盗版在质量方面的差距不大