问题 选择题

鱼类腥味产生的原因是由于鱼身上存在有机化学物质甲胺,甲胺易溶于乙醇,因此,煮鱼时加些酒,能使甲胺等溶于乙醇并随加热后挥发逸去,经过这样烹饪的鱼就不再有腥味了.下列过程与上面所述原理不相似的是(  )

A.用洗涤剂洗碗

B.用水除去衣服上的汗渍

C.用汽油除去衣服上的油污

D.用酒精将试管壁上的碘洗掉

答案

答案:A

选择题
阅读理解

阅读理解。

     Everyone's at it, even my neighbors. I thought I might be the only person left in the world who hadn't done

an eBay deal. So, I decided to try my hand at online auction (网上拍卖). Buying for beginners: Sign up on

www.ebay.co.uk. Most items (e.g. tables, computers, and books) ready for auction will come with a picture

and a short description; others may be marked with"Buy It Now" and have a fixed price. You can buy these

right away.

      If the item is being auctioned, you offer the highest price you are prepared to pay and eBay bids (出价) for

you.The bid will be increased little by little until it goes beyond your highest bid, then you are emailed and asked

if you would like to bid again. Auctions last up to 10 days, and when they finish you get an e-mail telling you

whether you have won the item.

     How to pay: Sellers decide how they would like to be paid and you need to check this before placing a bid

as you might not want to post a cheque or postal orders. The easiest way is through PayPal, an online payment

system that takes the money away form your credit card (信用卡).

     Selling made simple: If you plan to sell on eBay, it helps to include a picture of the item. I followed my

friends' advice and put up the items I wanted to sell for a 10-day auction, starting on a Thursday.

     The big things in life: It's easy to post a small item, but furniture is a big part of eBay and this has to be

collected or sent by deliverymen. Check the ways of delivery before you bid.

1. What is the passage mainly about?

A. How to make payment online.

B. Ways of making delivery online.

C. Advantages of an online auction system.

D. How to use an online-auction system.

2. After bidding for an item, a buyer ______.

A. will get what he wants in ten days

B. should make payment immediately

C. has chances to make higher bids

D. must pay through PayPal

3. The easiest way of making payment mentioned in the passage is _______.

A. through an online payment system

B. through a local banking system

C. by sending the money to the seller

D. by paying the deliveryman directly

4. Which of the following is Not right according to the passage?

A. An eBay deal is popular with people.

B. You can see pictures, accounts and prices for most items ready for auction online.

C. Everything you want to buy can be sent by post.

D. Online auctions usually last up to 10 days.