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问题 单项选择题

急性正后壁心肌梗死时冠状动脉病变的最常见部位是（）

A.左冠状动脉主干

B.左冠状动脉前降支

C.左冠状动脉回旋支

D.右冠状动脉

E.三支病变

答案

参考答案：D

单项选择题

Japan and the newly industrialized countries are passing labor-intensive sects as garment-making over to less developed nations and moving into advanced technology and services.

A．sects like

B．sectors like

C．sections as

D．sections such as
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单项选择题

传染性单核细胞增多症测不出嗜异性抗体的比例为()

A．20%～30%

B．10%～15%

C．15%～25%

D．<5%

E．5%～10%
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