结核病的主要社会传染源是()。
A.排菌的病人
B.所有活动性肺结核病人
C.肺内有空洞性病变的患者
D.血行播散型肺结核患者
E.对抗结核化疗效果不明显的患者
参考答案:A
-----What do you think of Andrew?
-----There are some things ____ are not easy to ______, and his rudeness is one.
A.that; put up with
B.which; get along with
C.what; think of
D.that; put aside
自上世纪90年代棉铃虫爆发以来,()品种的出现对于稳定我国棉花生产,保证原棉有效供给发挥了巨大作用
A、抗虫棉
B、低酚棉
C、彩色棉
D、长绒棉