A.舌下神经B.迷走神经C.面神经D.舌咽神经 E三叉神经
发出分支分布在结肠左曲以上消化管的平滑肌的神经是( )
参考答案：B
—How dangerous!
— Yes. I think the policeman should stop the children soccer in the street.
A．play
B．playing
C． to play
D．plays
表明油品易燃易爆性的特征指标有哪些？
