无花果的肉质化部分是（）A.花托 B.花序托 C.花序轴 D.花被 E.果

在实践中，为了及时开展反洗钱调查，金融机构有合理理由认为与洗钱、恐怖主义活动及其他违法犯罪活动有关的交易或者客户，金融机构应当同时报告（）。

A、公安机关

B、金融机构上一级机构

C、中国人民银行当地分支机构

D、金融机构总部

中央银行从事资产负债活动，但不以盈利为目的。（）

阅读理解。

     If English means endless new words, difficult grammar and sometimes strange pronunciation, you are

wrong. Haven't you noticed that you have become smarter since you started to learn a language?

     According to a new study by a British university, learning a second language can lead to an increase in

your brain power. Researchers found that learning other languages changes grey matter. This is the area

of the brain which processes information. It is similar to the way that exercise builds muscles.

     The study also found the younger people learn a second language, the better the effect is.

     A team led by Dr Andrea Mechelli, from University College London, took a group of Britons who only

spoke English. They were compared with a group of "early bilinguals" who had learnt a second language

before the age of five, as well as a number of later learners.

     Scans showed that grey matter density (密度) in the brain was greater in bilinguals than in people without

a second language But the longer a person waited before mastering a new language, the smaller the difference

was.

     "Our findings suggest that the structure of the brain is changed by the experience of learning a second

language," said the scientists.

     It means that the change itself increases the ability to learn.

     Professor Dylan Vaughan Jones of the University of Wales, has researched the link between bilingualism

and maths skills. "Having two languages gives you two windows on the world and makes the brain more

flexible (灵活的)," he said. "You are actually going beyond language and have a better understanding of

different ideas."

     The findings were matched in a study of native Italian speakers who had learned English as a second

language between two and 34. Reading, writing, and comprehension were all tested. The results showed

that the younger they started to learn, the better. "Studying a language means you get an entrance to another

world," explained the scientists.

1. The main subject talked about in this passage is _____.

A. science on learning a second language

B. man's ability of learning a second language

C. findings that language learnings can help brain power

D. language learning and maths study

2. The last sentence of the second paragraph is intended to _____.

A. say language learning is also a kind of physical labor

B. prove that one needs more practice when he (she) is learning a language

C. show the importance of using it when you learn a language

D. make people believe language learning helps grey matter work well

3. We may know from the scientific findings that _____.

A. the earlier you start to learn a second language, the higher the grey matter density is

B. there is no difference between a later second language learner and one who doesn't know a second language C. the experience of learning a second language has bad effect on people's brain

D. the ability of learning a second language is changing all the time

4. The underlined word "bilinguals" probably means _____.

A. researchers on language learning

B. people who are good at learning foreign languages

C. people who can speak two languages

D. active language learners

上海证券交易所债券回购交易集中竞价时，申报数量为100手或其整数倍，单笔申报最大数量应当不超过（）。

A.3000手

B.5000手

C.1万手

D.5万手

下图为细胞的亚显微结构模式图，请据图回答：

上图属于真核细胞的是（），属原核细胞的是（），作出该判断的主要依据是（）