[单项选择]A. In a shop. B. At school. C. In a bank. D. In a restaurant.

[单项选择]

用SO₄^2-沉淀Ba²⁺时，加入过量的S0₄^2-可使Ba²⁺沉淀更加完全，这是利用（）

A. 络合效应
B. 螯合效应
C. 盐效应
D. 酸效应
E. 同离子效应

[单项选择]The basic structure of Australian government is based on （　）.
A. British model
B. American model
C. both British and American model
D. a self-established model

[简答题]Title: Challenge Your composition should be based on the outlines below. Outlines: (1) Everyone meets with challenges now and then. (2) Different men treat challenges differently. (3) How I think we should treat challenges. You should write 160 - 200 words neatly on ANSWER SHEET 2.

[单项选择]

Pushbike Danger
Low speed bicycle crashes can badly injure -- or even kill -- children if they fall onto the ends of the handlebars (车把). So a team of engineers is redesigning it to make it safer.
Kristy Arbogast, a bioengineer at the Children’s Hospital of Philadelphia in Pennsylvania, began the project with her colleagues. The cases they reviewed about serious abdominal (腹部的) injuries in children in the past 30 years showed that more than a third were caused by bicycle accidents, "The task was to identify how the injuries occurred and come up with some countermeasures," she says.
By interviewing the children and their parents, Arbogast and her team were able to reconstruct many of the accidents and identified a common cause for serious injuries. They discovered that most cases occur when children hit an obstacle at slow speed, causing them to topple (摇摆) over. To maintain their balance the children turn the handlebars through 90 de
A. they are not beautiful.
B. they may kill children.
C. they are likely to crash.
D. they affect the speed of the bike.

[简答题]设有A_m×n，B_n×m，已知E_n-AB可逆，证明E_n-BA可逆，且(E_n-BA)^-1=E_n+B(E_n-AB)^-1A

[单项选择]Two related paradoxes also emerge from the same basic conception of the aesthetic experience. The first was given extended consideration by Hegel, who argued roughly as follows: our sensuous attention and that gives to the work of art its peculiar individuality. Because it addresses itself to our sensory appreciation, the work of art is essentially concrete, to be understood by an act of perception rather than by a process of discursive thought.
At the same time, our understanding of the work of art is in part intellectual; we seek in it a conceptual content, which it presents to us in the form of an idea. One purpose of critical interpretation is to expound this idea in discursive form--to give the equivalent of the content of the work of art in another, nonsensuous idiom. But criticism can never succeed in this task, for, by separating the content from the particular form, it abolishes its individuality. The content presented then ceases to be the exact content of that work of a
A. it is our sensuous appreciation that gives peculiar individuality to the work of art
B. it is the content of the work of art that holds our attention
C. the work of art cannot be understood without a process of logical thinking
D. the form of the work of art is what our sensuous appreciation concentrates on

[单项选择]Which of the following is INCORRECT about David Bach
A. He is a psychologist.
B. He is a financial advisor.
C. He is a psychiatrist.
D. He is a best-selling author.

[单项选择]The Appalachian Mountains (formation) a natural barrier (between) the eastern seaboard and the vast (lowlands) of the continental (interior) of North America.
A. formation
B. between
C. lowlands
D. interior

[单项选择] Insurance is almost as important to business as banking. It works quite simply by spreading over a large man-her of people, the rests or the losses which otherwise would fall on the few who actually suffer them. Fire, for instance, normally damages only a few businesses each year but almost all companies buy insurance to protect themselves against it. What happens is that most companies pay regular small amounts of money, called the premium, to insurance groups and so a large fund of money builds up. Then the few who have suffered fires claim the cost of the damages. After investigation, the claims are paid out by the insurance companies. For the operation to work, insurance companies have to calculate what is the chance or probability of certain events happening, and what the cost of making accidents good will be, and how many people will pay, what rates, to have protection. Premiums are fixed in proportion to the risk involved. There are four principles backing up every in
A. the cost of the damage
B. a sum of money paid regularly to an insurance company
C. proportion of the risk involved
D. a large fund of money