甲型肝炎临床治愈一年后，连续三次每次间隔一个月化验正常者，可供血浆。

影响性别分化的因素有（），营养，温度（环境），日照

阅读理解。

     A new retail (零售) phenomenon-SampleTrend from Japan which allows customers to walk away

with free products is to launch in Britain. From tomorrow, visitors to SampleTrend's central London

store can try anything on its shelves, and all of the products can be taken home without charge. For a

nominal (象征性的) annual membership fee of ￡60, users are free to enter the shop once a month

and help themselves to no less than ￡250 worth of goods every year. The only requirement is that

shoppers are asked to complete a simple questionnaire about each product they try.

     Known as "try-vertising" (体验式广告), the concept allows manufacturers to test products and

receive consumer feedback (反馈.) before launching onto the open market. It is already popular in

Japan and now aims to promote the broken UK retail industry.

     According to new figures, stores are facing a Christmas crisis with the weakest trading for six

months. Michael Ghosh, the founder behind SampleTrend, said. "The concept behind SampleTrend

is unique in the UK. It allows shoppers the opportunity to walk away with a number of real, full-size

products of their choosing without handing over a penny."

     The concept of try-vertising is simple but effective. Businesses across all sectors, from cosmetic (化

妆品) manufacturers to drink makers, place new products on the shelves at SampleTrend and wait for

consumers to try them out. Customers complete a short 10-point questionnaire about the product, and

the feedback they provide is used to make any last-minute adjustment before the product is brought

officially to market. The SampleTrend store houses everything including cosmetics, food and drink, and

household goods.

     Ghosh, the former advertising and sales director for Disney Europe, said such feedback may also

build brand loyalty from the beginning-a particularly appealing prospect for new businesses.

1. What do we know from the passage about SampleTrend?

A. It appears in Britain first.

B. It is unacceptable in Japan.

C. Its products are totally free for people.

D. Shoppers in it must complete a related questionnaire.

2. Which of the following is NOT true about try-vertising?

A. Manufacturers can receive consumer feedback.

B. Manufacturers can test their products.

C. It can transform the economy of UK.

D. It is simple but effective.

3. The most obvious feature of goods at SampleTrend is ______.

A. cheap price      

B. newly produced      

C. high quality      

D. strangely designed

4. What is Ghosh's attitude toward SampleTrend?

A. Positive.      

B. Negative.            

C. Doubtful.        

D. Uninterested.

在谷类食物中，B族维生素主要存在于（）。

A.蔗糖中

B.麦芽糖中

C.膳食纤维中

D.糊粉和胚芽中

E.精白面粉

剧本包括（）（）（）。

一般来说，1：32的分光器的衰耗大约为（）dB。