学校管理的基本途径是（ ）
A．计划
B．组织
C．沟通
D．实施
参考答案：C
Mr. Wang is so friendly to his students that he is__________ their friend.
A dressed up B regarded as C looked like D looked at
参与hnRNA的剪接和转运的是（）
A.tRNA
B.mRNA
C.hnRNA
D.snRNA
E.rRNA
