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【单选题】
关于组成蛋白质的氨基酸叙述错误的是A.
不L-α-氨基酸
B.
按R基团的化学特性可分为五类
C.
280nm处吸收峰
D.
α-氨基、α-羧基是形成肽键的基团
E.
不同的pI是由不同的R基团决定的
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反馈参考答案：
举一反三
【简答题】足少阴肾经的有穴通道起于（）穴，止于（）穴。
【单选题】G大调的D2:dol #fa la re 解决到?
A.
si sol re re
B.
sol si sol re
C.
sol si re re
D.
si sol sol re
【单选题】Mr. Black ____famous people every week in his radio program.
A.
interviewed
B.
interviews
C.
evaluation
D.
evaluate
【简答题】阅读下面短文 , 从 [A] Right 、 [B] Wrong 、 [C] Doesn ’ t say 三个判断中选择一个正确选项 , 并在答题卡上将该项涂黑。 Mr.Black and Mr. White were two very famous artists in the city. Their drawings were also very popular in the city. Bu...
【单选题】Mr.Black is a professor of chemistry. ,he is a famous writer. [ ]
A.
In all
B.
In brief
C.
In fact
D.
In addition
【单选题】Mr.Black___famous people every week in his radio program.
A.
interviews
B.
interviewed
C.
interview
D.
interviewing
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