不能反映肝内或肝外胆汁淤积的实验是（） A.血清一分钟胆红素测定 B.血清γ-GT

(B)

Tim Richter and his wife, Linda, had taught for over 30 years near Buffalo, New York—he in computers, she in special education. "Teaching means everything to us", Tim would say. In April 1998, he learned he would need a heart operation. It was the kind of news that leads to some serious thinking about life’s purpose.
Not long after the surgery, Tim saw a brochure describing Imagination Library, a program started by Doily Patron’s foundation (基金会) that mailed a book every month to children from birth to age five in the singer’s home town of Sevier, Tennessee. "I thought, maybe Linda and I could do something like this when we retire," Tim recalls. He placed the brochure on his desk, "as a reminder."
Five years later, now retired and with that brochure still on the desk, Tim clicked on imagination library. The program had been opened up to partners who could take advantage of book and postage discounts.
The quality of the books was of great concern to the Richters. Rather than sign up online, they went to Dollywood for a look-see. "We didn’t want to give the children rubbish," says Linda. The books-reviewed each year by teachers, literacy specialists and Dollywood board members-included classics such as Ezra Jack. Keats’s The Snowy Day and newer books like Anna Dewdney’s Llama series.
Satisfied, the couple set up the Richter Family Foundation and got to work. Since 2004, they have shipped more than 12,200 books to preschoolers in their area. Megan Williams, a mother of four, is more than appreciative "This program introduces us to books I’ve never heard of."
The Richters spend about $400 a month sending hooks to 200 children. "Some people sit there and wait to die," says Tim. "Others get as busy as they can in the time they have left.\

What can we learn from Tim’s words in the last paragraph

A. He needs more money to help the children.
B. He wonders why some people are so busy.
C. He tries to save those waiting to die.
D. He considers his efforts worthwhile.

当油品达到闪点后继续加热到某一温度，引火后液体开始燃烧，火焰不再熄灭的最低温度称为油品的（）。

A.闪点

B.沸点

C.燃点

D.倾点

如图所示，理想变压器的原副线圈匝数比n1：n2=1：10，副线圈与阻值R=20Ω的电阻相连．原线圈两端所加的电压u=20sin20πt(V)，则（　　） A．副线圈输出交流电的频率为10Hz B．交流电压表的示数为20V C．电阻R上消耗的电功率为2kW D．原线圈中电流的最大值为100A

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

With the development of the Internet and the popularization of computers, shopping on the Internet has become a common place in our life. Here consumers can buy almost everything they need.

Shopping on the Internet has a lot of advantages, of which the most important is perhaps its convenience. People don’t have to waste a lot of their energy and precious time to go from one shop to another to choose the commodities they like. This is especially desirable to the old, the sick and the busy people who cannot go to the shops in person. The goods come in all shapes, sizes and colors on the Internet. The commodities they order will be delivered to them promptly.

However, shopping on the Internet also has its disadvantages. The first disadvantage is that the consumers can’t see the goods or try them on personally. Sometimes, the real goods may not be the same as what they have seen on the computer. The second disadvantage is that some shops on the Internet are not registered. They will never deliver anything to you after they get the money from you. Once cheated, you will find that you have nowhere to go to complain.

1. 以约30个词概括短文的要点;

2. 然后以约120个词以”网上购物”为主题发表看法,并包括以下要点:

(1) 你认为网上购物的最大优点是什么;

(2) 描述你或你的朋友或同学网上购物的体验;

(3) 你对网上购物有什么建议.

1. 可以使用事例或其他论述方法支持你的观点, 也可以参照阅读材料的内容但不能直接引用原文中的句子;

2. 标题自拟.

下列有关国际重复征税的原因表述错误的是（）。

A.纳税人所得或收益的国际化

B.各国居民纳税人取得的收入不确定性

C.各国行使税收管辖权的矛盾性

D.各国所得税制的普遍化