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问题 选择题

They just talk instead of _______.

A．working

B．works

C．to work

D．work

答案

答案：A

instead of相当于介词，故其后用动词ing形式，故选答案为A

单项选择题

氨基糖苷类抗生素中毒性最大的是（）

A.链霉素

B.卡那霉素

C.庆大霉素

D.新霉素

E.安普霉素
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单项选择题

A company is considering a $10000 project that will last 5 years. Annual after tax cash flows are expected to be $3000 Target debt/equity ratio is 0.4 Cost of equity is 12% Cost of debt is 6% Tax rate 34% What is the project’s net present value (NPV)（）

A. + $1460.

B. + $1245

C.$0.
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