物质在极短时间完成的化学变化,形成其他物质,同时释放出大量热和气体的现象,叫()
A.爆炸
B.物理爆炸
C.化学爆炸
D.核爆炸
参考答案:C
B.10 V,0.01 s
C.14.14 V,0.02 s
D.10 V,0.02 s
耳后,乳突后下方凹陷处的腧穴是
A.曲鬓
B.完骨
C.角孙
D.率谷
E.风池