【简答题】在真核微生物细胞质内存在着沉降系数为______S的核糖体,它是由______S和______S两个小亚基组成,而其线粒体和叶绿体内则存在着______S核糖体,它是由______S和______S两个小亚基组成。
【简答题】在真核微生物细胞质内存在着沉降系数为()s的核糖体,它是由()s和()s两个小亚基组成,而其线粒体和叶绿体内则存在着()S核糖体,它是由()s和()s两个小亚基组成。
【简答题】在真核微生物细胞质内存在着沉降系数为( )S的核糖体,它是由( )S和( )S两个小亚基组成。
【单选题】The experts in aviation industry disapproved the claim by the CCR because
A.
the calculation of aviation industry's carbon emission is based on prediction instead of facts.
B.
the figure calculated is much more than the experts in aviation industry expected.
C.
airlines are also great efforts to reduce their oil consumption and carbon emissions.
D.
the experts didn't agree with the way of their calculation of the carbon emissions by planes.
【单选题】在真核微生物细胞质内存在着沉降系数为( )S的核糖体,它是由 S和( )S两个小亚基组成。
【单选题】成为以后各个时期发展的基础,尤其是青年时期发展同一性的基础,也是形成健康的个性品质的基础是( )