Although it is the first time he takes up such a big task, never ().
A. he has been
B. has he been
C. has been he
D. been has he
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We are told that the order has not yet come, so we have nothing to do now but ().
A. wait
B. to be waiting
C. to wait
D. waiting
下列关于“信号传递原则”的论述中，不正确的是（）。
A. 信号传递原则是自利行为原则的延伸
B. 要求根据公司的行为判断它未来的收益状况
C. 判断公司财务能力主要看其所公布的财务报告
D. 行动可以传达信息，并且比公司的声明更有说明力
Which statement relates the main idea of this passage
A. When salt is added to their diets, rats and men react in much the same way.
B. The near future will see a cure for high blood pressure.
C. Modem research has shown that high blood pressure is a result of salt in the diet.
D. A tendency toward high blood pressure may be a hereditary factor.
某公司拟以10万元投资一个项目，预计使用年限5年，无残值，按直线法计提折旧。该项目投产后年均现金收入48000元，付现成本13000元，所得税税率33%，则该投资项目的回收期和会计收益率分别为（）。
A. 2.86年和0.05%
B. 2.86年和35%
C. 3.33年和10.05%
D. 3.33年和35%
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