鼻中隔偏曲引起头疼的主要原因是
A.鼻塞
B.鼻出血过多
C.偏曲部位压迫鼻甲
D.鼻黏膜干燥
E.呼吸不畅
参考答案:C
There are ________ vegetables for supper. Would you please buy some carrots and cabbages?
A.a little
B.little
C.a few
D.few
信息系统的软件安全