【单选题】Which of the following proteins involved in cotranslational translocation of proteins into the ER membrane is not a GTP-hydrolyzing protein?
A.
a subunit of the SRP receptor
B.
elongation factors in ribosome mediated mRNA translation
【单选题】主动齿轮齿数10,被动齿轮齿数20,两齿轮啮合输出动力,请问传动比是( )
【单选题】Print “Abs(-2.6)=”; Abs(-2.6) 的输出结果是( )
【判断题】轴类工件外圆径向探伤时,曲底面回波声压比同声程理想大平面相同.( )A. 对;错
【判断题】The translocation of proteins into mitochondria and chloroplasts occurs post-translationally.
【单选题】“伟大的思想总是伟大的迷途”,这是()说的。
【简答题】分析电影要从以下____和____两方面。
【判断题】轴类工件外圆径向探伤时,曲底面回波声压比同声程理想大平面相同.( )