装载过境动物的运输工具到达口岸时,口岸检验检疫机构对运输工具和装载容器外表进行消毒。对动物进行检疫,检疫合格的准予过境。( )
参考答案:对
Paul is good, hard-working and intelligent; ,I can't speak too highly of him. [ ]
A. as a result
B. in a word
C. by the way
D.on the contrary
右图是突触的亚显微结构模式图,分析此图回答问题:
突触后膜上发生的信号转换过程是()。