( )是说明统计对象的特征的数值表达或文字表达。
A．统计
B．统计值
C．统计分析
D．数据调查
参考答案：B
If you had told me in advance, I ___ him at the airport.
A．would meet
B．would had meet
C．would have met
D．would have meet
蛋白质生物合成的起始复合物中不包含( )
A．核蛋白体小亚基
B．DNA
C．mRNA
D．核蛋白体大亚基
E．蛋氨酰tRNA
