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问题 选择题

下列关于秦朝历史的评述，哪一项是不正确的[ ]

A．秦朝是我国历史上第一个统一的多民族封建国家

B．秦朝在地方上推行郡县制

C．秦朝开始使用的圆形方孔铜钱成为历代铸币制造样式

D．开凿的灵渠第一次沟通了长江和珠江两大水系

答案

答案：C

单项选择题 A1/A2型题

腹部闭合性损伤者，出现下列情况应早期剖腹探查（）

A.阵发性腹痛，且阵痛加剧，间歇期延长

B.实验室检查WBC计数增加、RBC下降

C.腹穿抽出凝固血液4ml

D.恶心、呕吐、酸中毒

E.腹膜刺激征范围逐渐扩大
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单项选择题

Mr. Faugel was convinced that student nervousness had affected their scores; to reduce the anxiety of these students who had already been tested, he gave 22 of them a beta blocker before readministration of the test. Their scores improved significantly. The other 8 students (who did not receive the beta blockers) improved only slightly. Second-time test-takers nationwide had average improvements which were similar to those in Faugel’’s non-beta blocker group. Beta blockers are prescription drugs which have been around for 25 years. These medications, which interfere with the effects of adrenalin, have been used for heart conditions and for minor stress such as stage fright. Now they are used for test anxiety. These drugs seem to help test-takers who have low scores because of test fright, but not those who do not know the material. Since there can be side effects from these beta blockers, physicians are not ready to prescribe them routinely for all test-takers.

According to the passage,________.

A．all people can take beta blockers

B．beta blockers are widely prescribed

C．beta blockers work only on test anxiety

D．beta blockers work only to improve test scores if the test-taker truly knows the material
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