风热乳蛾多因受凉、潮湿、疲劳、烟酒过度，有害气体刺激，邪毒乘虚侵袭，搏结于______，其脏腑病理与______的关系较密切。
参考答案：喉核 肺胃
Betty goes to learn how to play the violin every afternoon _____ Saturday and Sunday.
She does the housework on these days.[ ]
A. on
B. during
C. except
D. from
结核分枝杆菌引起机体的免疫是（）
A.局部免疫
B.感染免疫
C.体液免疫
D.抗毒素免疫
E.抗菌免疫
