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患者女，学生，18岁，体检时发现胸骨左上缘收缩中期3/6级喷射性杂音，传导至颈部。平素无不适，较剧烈活动感轻度气促。

下列检查不推荐进行（）

A.心导管检查

B.胸部X线片

C.心电图

D.血常规和抗链“O”检查

E.超声心动图

答案

参考答案：D

单项选择题 A1/A2型题

“不索取和非法收受患者财物；不收受医疗器械、药品、试剂等生产、经营企业或人员以各种名义、形式给予的回扣、提成；不违规参与医疗广告宣传和药品医疗器械促销”体现了哪项基本行为规范（）

A.廉洁自律，恪守医德

B.遵纪守法，依法执业

C.严谨求实，精益求精

D.优质服务，医患和谐
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单项选择题

It is clear that some chemicals can damage the health of animals and humans. (1) , this is not the only problem that (2) be caused by the careless use of chemicals. Chemicals can also (3) the ecological balance of the environment. If the ecological balance is disturbed, the results can be (4) serious.

The (5) of DDT illustrates the problem. DDT, a chemical which kills insects, at first seemed to be a perfect answer (6) many problems. It would control insects that caused dangerous diseases, (7) insects that caused billions of dollars of damage to crops every year. Governments permitted and even (8) the use of DDT. Farmers in many countries (9) to spray it on their crops. The (10) results were good: Damage to crops (11) down, and profits went up. However, the chemical had effects which the scientists didn’t see in (12) . First, it also killed insects which were the (13) enemies of the harmful insects and which were therefore beneficial to farmers. Second, and perhaps worse, DDT did not kill (14) harmful insect. A few insects had natural resistance to the chemical. They (15) and reproduced in large numbers. In a few years there were large numbers of insects which were not (16) by DDT, and there were (17) insects which could act as natural (18) on these new "super-insects". Finally, it became clear that DDT was not solving the insect problem. In fact, it was making the problem worse. It (19) became necessary to find a second (20) for the effects of the first.

7（）

A.as well as 

B.as well 

C.but 

D.also
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