蛋白质印迹(Western blotting)

阅读理解。

     A Japanese toy maker speaks out that they made a gadget (小配件)that translates (翻译)dog bark

(狗叫)into people's language and plans to sell the gadget in U.S. pet stores and gift shops this summer.

     Tokyo-based Takara Co. Ltd(有限公司)says about 300,000 of the dog translating gadgets have

been sold since it was on sale in Japan late last year. They think far bigger sales come to America in

August. The United States is home to about 67 million dogs, more than six times the number in Japan.

    Regarded as one of the coolest inventions (发明)of 2002 by Time magazine, the gadget translates

each bark into six feelings. It can tell whether the dog is happy, sad, disappointed or angry etc.

     "We know that the Americans love their dogs so much, so we don't think they will mind spending

$ 120 on this gadget, "the marketing manager said during an interview in America.

     One thing that seems certain is that the market for animal translation gadgets will likely keep on a

dog's world since Takara has no plans to make a gadget for cats. "They are too changeable, "the

marketing manager said. 

1. This text mainly tells us that ______.    

A. the gadget is very expensive 

B. Japanese made a new gadget 

C. American dogs can tell their feelings 

D. Japanese will sell the gadget in America

2. "They are too changeable. "means "______are too changeable. "  

A. Cats

B. Dogs

C. Stores

D. People

3. We can learn from the text that ______.    

A. people need to talk to dogs 

B. there are more dogs in America than in Japan 

C. Japanese people don't like dogs 

D. they will make a gadget for kids in the future 

4. Takara Co. Ltd. is ______the sale of its new gadget. 

A. proud of

B. satisfied with

C. sure of

D. worried about

VC密度比水（）。

A．大

B．小

C．一样

甲数的 2 5 与乙数的 1 3 相等（甲数乙数都大于0），则甲数大于乙数．______．（判断对错）

1998的国家危险废物名录共列出了（）种危险废物。

A．50

B．47

C．30

D．60

下列关于班轮运输的说法不正确的是（）

A.船舶满载是班轮运输的核心工作

B.班轮主要运输杂货

C.班轮运输以成组化的方式进行

D.班轮的发船间隔一般有规律性