单项选择题

一工人长期在冷库工作，近日出现下肢肿胀，疼痛，足背动脉搏动消失，应考虑疾病为（　　）。

A.大隐静脉曲张
B.小隐静脉曲张
C.血栓闭塞性脉管炎
D.下肢静脉曲张
E.下肢深静脉曲张

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Task 2Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.Until recently the opportunities for criminal activities on the Internet have been low. However, the volume of business done on the Internet is growing rapidly such as ordering books and other products and making money transactions. All this is creating temptations for hackers.Hackers are often young people who are interested in computers. They use them to move quietly to the Internet, looking for ways to break into computer's systems run by banks, telephone companies and even government departments. They look for examples of credit cards and try to steal the numbers.Hackers rarely admit to a successful break-in. The first indication of a hacking may be when a customer discovers a wrong money transaction on a credit card account. It is harder to check on somebody misusing an online connection unless there is a massive download of information which would call the attention of the consumer.The main idea of the first paragraph is that______.A.the opportunities for criminal activities on the Internet have been lowB.the opportunities for criminal activities on the Internet are lowC.there are more opportunities for criminal activities on the InternetD.people should not make money transactions on the Internet

A.Until
B.
The
C.
A.the
D.the
E.there
F.people

单项选择题

小儿缺氧缺血性脑病控制惊厥者选（）。

A.地西泮
B.苯妥英钠
C.苯巴比妥钠
D.水合氯醛
E.卡马西平

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