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问题 单项选择题 A1/A2型题

舌尖向左偏，右侧痉挛性偏瘫，右侧可引出Babinski征，病变部位在（）。

A.左侧内囊

B.左侧中脑

C.左侧脑桥

D.延髓左内侧部

E.延髓右外侧部

答案

参考答案：D

单项选择题

A client is scheduled to undergo percutaneous transluminal coronary angioplasty (PTCA). The nurse explains the procedure to the client. Which of the following statements by the nurse is most appropriate（）

A. "PTCA involves opening a blocked artery with an inflatable balloon located on the end of a catheter. "

B. "PTCA involves cutting away blockages with a special catheter. "

C. "PTCA involves passing a catheter through the coronary arteries to find blocked arteries. "

D. "PTCA involves inserting grafts to divert blood from blocked coronary arteries. "
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单项选择题

成组四格表资料采用基本公式或专用公式计算不校正χ2值的条件是

A．所有的理论频数均大于5

B．样本总例数大于40，且只有一个理论频数小于5

C．样本总例数大于40，且最小的理论频数小于5

D．样本总例数小于40，且最小理论频数大于5

E．两个样本率均大于5%
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