— You won't believe it, Sam.I was chosen

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问题选择题

— You won't believe it, Sam. I was chosen as an exchange student to China.
— Congratulations! _____

A. That's something.
B. You did a good job.
C. That's all right.
D. You got it.

答案

答案：A

单项选择题

血肌酐明显上升时的肾小球滤过功能至少下降到正常的（）

A.1／3

B.1／5

C.1／6

D.1／2

E.1／4

单项选择题 A1/A2型题

关于淀粉酶（AMY）的叙述，错误的是（）

A.主要有胰淀粉酶和唾液淀粉酶两种同工酶

B.氯离子对其有激活作用

C.血标本可用EDTA抗凝

D.成人AMY水平与性别、年龄关系不大

E.AMY较稳定，室温可存放1周