【简答题】试述矩阵式组织结构及事业部式组织结构的特点及优缺点。
【简答题】汽车空调系统采用的空气净化装置通常有 __ __和_ __两种。
【简答题】广义密码子(codon in codon)
【单选题】两个有理数 , ,并且 ,则下列各式正确的是( ).
【单选题】What is wrong about the codon description?
A.
Each codon consists of three bases
B.
Each codon represents only one amino acid
C.
There is only one codon for each amino acid
D.
Some codons do not encode any amino acids
【判断题】AUG codon can be a start codon and/or a codon for methionine.