凯氏定氮法测定蛋白质，蒸馏液加入过量的NaOH后呈（）色。 A.无_爱下问搜题

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问题单项选择题

凯氏定氮法测定蛋白质，蒸馏液加入过量的NaOH后呈（）色。

A.无

B.蓝绿

C.蓝黑

D.白

答案

参考答案：C

选择题

单词辨音。

( )1. A. master
( )2. A. letter
( )3. A. light
( )4. A. money
( )5. A. peanut
( )6. A. May
( )7. A. soup
( )8. A. year
( )9. A. cook
( )10. A. horses

B. fast
B. enjoy
B. Friday
B. ghost
B. use
B. way
B. round
B. hear
B. know
B. houses

C. basketball
C. lemon
C. drink
C. hello
C. hungry
C. says
C. without
C. near
C. week
C. wishes

D. place
D. shelf
D. shine
D. both
D. luck
D. player
D. couch
D. wear
D. keep
D. flies

选择题

下列现象或活动，与真菌无关的是[ ]

A．制作豆腐乳

B．发面蒸馒头

C．脏衣服受潮发霉

D．幼儿患手足口病