生活中的下列变化,属于化学变化的是[ ]
A.水果榨果汁
B.玻璃破碎
C.煤气燃烧
D.湿衣服晾干
答案:C
Thomas is the very person I think is worth making friends with.
A.whom
B.who
C.which
D.whoever
揭汽缸大盖时,哪些地方应有专人监护?为什么?