一个长方体，如果长增加3厘米，宽、高都不变；或者宽增加4厘米，长、高都不变；或者

营养素的DRI是人均需要量的（）

A.2SD

B.2倍

C.1～2SD

D.1SD

E.以上都不是

既能清热燥湿，又善于治疗下焦湿热诸证和阴虚发热的药物是（）。

A.黄芩

B.黄连

C.黄柏

D.知母

E.龙胆

全国银行间市场质押式回购成交合同的内容( )。

A．由正回购方决定

B．由中国人民银行统一制定

C．由逆回购方决定

D．由回购双方约定

阅读理解。

     English words don't stay the same. People need new words for new inventions. Different words come

into use, or older words are used in a new way.

     English can change by borrowing words from other languages. The word "tomato" was borrowed from

Mexico, and" tea" came from China, and so on. Now a great many of new space and science words are

being borrowed from other countries, too. New words can be formed in other ways. For example, some

can be formed by adding two words together. "Weekend" and "cookbook" are made up of two parts.

Sometimes new words are shorter forms of older words. The word"photo" was made from "photograph"

by cutting off the end of the longer word. "Plane" was made by cutting off the front part of "airplane". The

names of people and products can become new words. Our "sandwich" was named after a man named

Sandwich and "sello (透明胶带)" was a name given by the company that first made the product.

1. New English words are needed because _____. [ ]

A. people use old words in a new way

B. people need a new way to explain

C. the world is changing and developing

D. new ideas and new inventions come about quickly

2. We know from the passage that _____. [ ]

A. new science words are shorter than the old ones

B. the best way to make a new word is adding words together

C. some new English words are borrowed from other languages

D. most new English words are borrowed from other languages

3. How many ways of developing English words does the passage tell us? [ ]

A. Three.

B. Four.

C. Five.

D. Six.

在一条河上进行水质调查，若该河水深＞5m时，在一条垂线上，在水面下______处及在距河底______处，各取样一个。下列各项说法正确的是( )。

A．0.5 m，0.5 m

B．0.5 m，0.3 m

C．0.3 m，0.5 m

D．0.3 m，0.3 m