________ I really don't like art, I find his work impressive.

A．As

B．Since

C．If

D．While

下列物质燃烧的现象正确的是

A．硫在空气中燃烧发出蓝紫色火焰

B．铁丝在氧气中燃烧火星四射，生成黑色固体

C．木条在氧气中燃烧发出蓝色火焰　　

D．磷在氧气中燃烧产生大量的白色烟雾