A:①④
B:①③
C:①②
D:③④
The photo often makes the girl of the great time in the countryside.
打开盛有酒精的瓶盖,就能闻到酒精的气味,这是因为构成酒精的微粒____ 到空气中,接触到人的嗅觉细胞.白酒瓶一定要盖严瓶盖,否则酒的香味变淡,度数会降低,其原因____ .
下列句子标点的运用恰当的一项是( )
—My math teacher said I was too lazy.—______________. You should work harder.