[单项选择]Which of the following instruments was widely used before the seventeenth century


A. The harpsichord
B. The spinet
C. The clavichord
D. The organ

[单项选择]Which one of the following is the most widely used measure of inflation （　） 　
A. The Consumer Price Index.
B. The Index of Leading Economic Indicators.
C. The prime rate.
D. The Federal Funds rate.

[单项选择]Which of the following drug is used to treat the alcohol withdrawal symptom commonly（）
A. antipsychotic drug
B. MAOIs
C. TCAs
D. benzodiazepine
E. lithium

[单项选择]Which of the following can be used in place of "Quite the reverse"


A. Quite right.
B. True enough.
C. Most unlikely.
D. Just the opposite.

[单项选择]Ocean transportation is widely- used because it is a relatively low-cost way to transport goods, and it can easily handle large shipments（）
A. 人们喜欢在宽阔的海面上运输货物，因为它价格低可以行大船。
B. 海洋运输被广泛使用，因为很容易用大船运送较为低廉的商品。
C. 人们广泛使用海洋运输，因为它具有运量较大，运费较低的特点。
D. 海洋运输被广泛使用，因为它运量大，虽然花费不低。

[单项选择]Which of the following charter forms is used in a voyage charter( ).
A. GENCON
B. BALTIME
C. NYPE
D. BARECON

[单项选择]Which of the following adjectives can be used to descibe Joe


A. Funny.
B. Clever.
C. Brave.
D. Stupi

[单项选择]Which of the following should not be used when trying to escape a fire


A. windows.
B. elevators.
C. fire escapes.
D. stairways.

[单项选择]Which of the following idioms may be used by the author as a suggestion for minimizing risks

[单项选择]Which of the following words can be used to best describe the personality of Ramos


A. Double-faced.
B. Perfect.
C. Beautiful.
D. Dissociated.

[单项选择]Which of the following methods can not be used for international adoption


A. The majority of prospective adoptive parents use an adoption agency.
B. Some prospective parents consult adoption facilitators in the United States.
C. Some prospective parents choose to establish direct communication with contacts in a particular country.
D. Many state-licensed adoption agencies input children from other countries directly.

[单项选择]The following can be used to introduce the U.K. EXCEPT _____.


A. a western European country
B. with an area smaller than Germany
C. It borders on France
D. It is now consisting of three parts

[单选题]Which of the following is not included in gyroscopic instruments?
A.Turn coordinator
B.Attitude indicator
C.Magnetic compass
D.Heading indicator

[单项选择]Computers are already widely used in industry and in universities and the time may come when it______ possible for ordinary people to use them as well.


A. is
B. will be
C. must be
D. may be

[单项选择]A chemical widely used in hard plastic drinking bottles and the lining of food cans may reduce the effectiveness of chemotherapy treatment, a new study shows.
The findings, reported in the journal Environmental Health Perspectives, adds to the growing list of concerns about bisphenol-a, or BPA, a chemical used to make the hard, clear and nearly unbreakable plastic called polycarbonate. The plastic is also found in the lining of nearly every soft drink and canned food product.
Most of the concern about BPA has focused on children, who are exposed to the chemical when trace amounts escape from polycarbonate baby bottles and the linings of infant formula cans. The worry is based on data from animal studies. Rat pups exposed to BPA, through injection or food, showed changes in mammary and prostate tissue, suggesting a potential cancer risk. In some tests of female mice, exposure appeared to accelerate puberty.
In the latest research, a team from the University of Cinci
A. Its results are published in Environmental Health Perspectives.
B. It is carried out by a team from University of Cincinnati.
C. It is founded by grants from 3 institutions.
D. It is reported in The Journal of the American Medical Association.

[单项选择]

One of the most widely used routing protocols in IP networks is the Routing Information Protocol (RIP). RIP is the canonical example of a routing protocol built on the ___25___ algorithm. Routing protocols in intemetworks differ slightly from the idealized graph model. In an internetwork, the goal of the routers to forward packets to various ___26___.
Routers running RIP send their advertisement about cost every ___27___ seconds. A router also sends an update message whenever an update from another router causes it to change its routing table.
It is possible to use a range of different metrics or costs for the links in a routing protocol. RIP takes the simplest approach, with all link costs being equal ___28___. Thus it always tries to fend the minimum hop route. Valid distances are 1 through ___29___. This also limits RIP to running on fairly small networks.

28（）
A. 1 
B. 15 
C. 16
D. length of the link