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问题 单项选择题

幽门梗阻病人长期呕吐可造成：（）。

A.低氯低钾酸中毒

B.低氯低钾碱中毒

C.高氯高钾酸中春

D.高氯高钾碱中毒

E.高氯低钾碱中毒

答案

参考答案：B

单项选择题

( )的认定是确定所得税课征范围的关键。

A．国籍归属

B．纳税人身份和所得归属

C．居住地

D．收入性质
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单项选择题

An analyst does research about defensive internal ratio and gathers the following information about a company (in millions):
· Current ratio is 2.5
·Quick ratio is 2
·Cash ratio is 1.5
·Average daily expenditures is $20
·Current liabilities is $100
The company's defensive interval ratio is closest to:（）

A. 7.5

B. 10.0

C. 12.5
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