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问题 问答题 简答题

发电机自并励系统的优点有哪些？

答案

参考答案：

（1）运行可靠性高

（2）改变发电机轴系稳定度

（3）提高电力系统稳定水平

（4）经济性好，可降低投资

单项选择题

An analyst does research about free cash flow to the firm and gathers the following information about a company:
·Cash flow from operations is $1600
·Interest paid is $300
·Capital expenditures is $900
·Depreciation is $200
·Tax rate is 35%
Under U. S. Generally Accepted Accounting Principles (U. S. GAAP), free cash flow to the firm is closest to:

A. $795
B. $895
C. $1095
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单项选择题

流行性感冒的临床特点为（）

A.上呼吸道症状轻，发热和全身中毒症状重

B.上呼吸道症状较轻，发热和全身中毒症状也较轻

C.上呼吸道症状以及发热和全身中毒症状均较重

D.无上呼吸道症状，而发热和全身中毒症状较重

E.上呼吸道症状较轻，无发热和全身中毒症状
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