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问题 单项选择题 A1/A2型题

急性胰腺炎发病早期最敏感的指标是（）

A.血淀粉酶

B.尿淀粉酶

C.血脂肪酶

D.尿淀粉酶肌酐清除率

E.血钙

答案

参考答案：A

解析：血淀粉酶升高常出现于发病6小时后，明显早于其他标记物且特异性较好。

单项选择题

在对某项目进行现金流量分析时，选定的基准收益率为10%，经测算该项目的内部收益率为12%。若重新设定基准收益率为13%，该项目的内部收益率应该等于( )。

A．10%
B．12%
C．13%
D．14%
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句型转换

请根据要求改写下列句子，每空一词。

小题1:His father has already been to France already. （改为否定句）

His father    p   been to France    p  .

小题2:Yesterday Tom got up early so that he could catch the early bus. （保持句意基本不变）

Yesterday Tom got up early    p      p   to catch the early bus.

小题3:The witness noticed a man walking into the building at 11:00 p.m.（改为被动语态）

A man    p   noticed    p  into the building at 11:00 p.m. by the witness.

小题4:The doctor said to him, “ Take the medicine three times a day.” （改为间接引语）

The doctor told him    p      p   the medicine three times a day.

小题5:The students watched a very interesting TV programme yesterday. （改为感叹句）

  p      p    interesting TV programme the students watched yesterday!
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