为了运输安全和预防事故的发生,我国政府规定:危险化学品的外包装上必须印有警示性标志!在以下各警示性标志中,“漂白粉”的外包装上应选用的是( )
A.
B.
C.
D.
答案:B
The students of our class want to _________ some flowers _________ our English teacher.[ ]
A. like; to
B. take; to
C. get; with
D. give; to
简述真核mRNA的成熟加工过程?