问题 选择题

为生命活动提供能量的是                                      (   )

A.糖类、蛋白质和脂肪    

B.维生素、水和无机盐

C.维生素、膳食纤维和糖类

D.维生素、糖、蛋白质

答案

答案:A

题目分析:食物中含有六大类营养物质:蛋白质、糖类、脂肪、维生素、水和无机盐,它们的作用不同,蛋白质、糖类、脂肪能提供能量,水、无机盐、维生素不提供能量,蛋白质是构成人体细胞的基本物质,蛋白质还能被分解,为人体的生理活动提供能量,糖类是人体最重要的供能物质,脂肪是人体内备用的能源物质。

点评:此题为基础知识题,解答此题的关键是熟记六大营养物质,掌握食物的消化和吸收。

单项选择题

Questions from 31 to 35 are based on the following passage:

  The exporter, as drawer of a draft (bill of exchange), hands the draft to his bank, the remitting bank, who in turn forwards it to the buyer through a collecting bank in the buyer’s country. A draft (also called a bill) is a written order to a bank or a customer to pay someone on demand or at a fixed time in the future a certain sum of money. If shipping documents accompany the draft, the collection is called “documentary collection.”

  Documentary collection falls into two major categories: one is documents against payment(D/P); the other, documents against acceptance (D/A).

  Documents against payment, as the term suggests, is that the collecting bank will only give the shipping documents representing the title to the goods on the condition that the buyer makes payment.

  Where the paying arrangement is D/A, the collecting bank will only give the buyer the shipping documents after buyer’s acceptance of the bill drawn on him, i.e. the buyer signs his name on the bill promising to pay the sum when it matures. In return he gets what he needs – the shipping documents.

  Under D/A, the seller gives up the title to the goods – shipping documents before he gets payment of the goods. Therefore, an exporter must think twice before he accepts such paying arrangement.

In a transaction, if payment is made by collection, then the remitting bank is always located in()

A.Seller’s country

B.Buyer’s country

C.Either A or B

D.None of the above

填空题