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问题 单项选择题

毒蛇咬伤病人的护理措施错误的是（）

A.抬高肢体

B.严密观察病情变化

C.卧床休息

D.创口持续湿敷

E.中草药内服

答案

参考答案：A

解析：毒蛇咬伤后，应将下肢下垂，以减少毒素的吸收。

单项选择题

治疗药物首选

A．青霉素

B．红霉素

C．氟康唑

D．雷米封+利福平

E．病毒唑
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单项选择题

An analyst is estimating the cost of capital for her firm. She has estimated the before-tax costs of the current sources of capital to be 8 percent of debt and 9 percent for equity, If the firm’s marginal tax rate is 40 percent, the costs of debt and equity she could use in her calculation are closest to:()

A. 4.8% for debt and 5.4% for equity.

B. 4.8% for debt and 9.0% for equity.

C. 8.0% for debt and 5.4% for equity.
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