问题
单项选择题
关于宫颈功能不全，以下错误的是（）
A.是导致晚期自然流产的重要原因
B.非孕期宫颈内口顺利通过8号扩张器，考虑有宫颈功能不全
C.宫颈功能不全者应在再次妊娠14～18周行宫颈环扎术
D.若环扎术后宫缩频密，环扎线松开，应尽快行再次环扎手术
E.宫颈锥切术可致宫颈功能不全
答案
参考答案：D
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关于宫颈功能不全，以下错误的是（）
A.是导致晚期自然流产的重要原因
B.非孕期宫颈内口顺利通过8号扩张器，考虑有宫颈功能不全
C.宫颈功能不全者应在再次妊娠14～18周行宫颈环扎术
D.若环扎术后宫缩频密，环扎线松开，应尽快行再次环扎手术
E.宫颈锥切术可致宫颈功能不全
参考答案：D
| 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 nation-wide 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. |
"Re-administration" in this passage refers to
A．giving the test again to people without administering beta blockers.
B．giving the test again m both groups after beta blockers have been administered to one group.
C．giving the test to both groups of test-takers and then giving them beta blockers.
D．giving the beta blockers without retesting.