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问题 单项选择题

某女，20岁，双眼视力急剧下降，查视 * * 充血，视野为中心暗点，应首先考虑

A．视 * * 水肿

B．球后视神经炎

C．缺血性视神经病变

D．皮质盲

E．视 * * 炎

答案

参考答案：E

单项选择题

The nurse provides care for a client with chronic obstructive pulmonary disease (COPD). Administering high doses of oxygen may produce what result

A. Increased respiratory drive.
B. Diminished respiratory drive.
C. A mismatch between ventilation and perfusion.
D. A profound decrease in partial pressure of arterial carbon dioxide (PaCO2).
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单项选择题

A．

B．

C．

D．
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