经测定，一血清标本的含氮量为10g/L，那么，蛋白质的浓度是多

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问题单项选择题

经测定，一血清标本的含氮量为10g/L，那么，蛋白质的浓度是多少

A．52.5g/L

B．57.5g/L

C．62.5g/L

D．67.5g/L

E．72.5g/L

答案

参考答案：C

填空题

根据音标写单词。

1.I have a_______['spe??l] friend called Max.

2.She feels [?n'k?mft?bl]when Mary talks to her.

3.Hua Luogeng is ['feim?s]all over the world.

4.My brother wants to be a ['s?u??l] worker when he grows up.

5.Our English teacher has two big [smail]eyes.

单项选择题

钢筋闪光对焊接头力学性能试验时，试件应该从成品中随机切取（）个试件，其中一半做拉伸试验，一半做弯越试验。

A.2

B.4

C.6

D.8