下列叙述中,哪些与呼吸系统的特异性防御机制有关()
A、铁结合蛋白
B、吞噬细胞
C、解剖屏障
D、溶菌酶
E、细胞因子
参考答案:E
单词拼写。
1. Dear Rosemary, thanks for your letter, which took a _________ (两个星期) to arrive.
2. When I was teaching the boys, I sometimes wondered how __________ (相关的) chemistry is to these
students after they left school.
3. It was my first visit to a r__________ (偏远的) village, a village as far away as you can imagine.
4. The hut was dark so it took time for our eyes to __________ (适应).
5. Fresh grass had been laid on the floor and there was a newly made __________ (平台) for Jenny and I to
sleep on.
新斯的明作用最强的部位是()。
A.胃肠平滑肌
B.骨骼肌
C.血管平滑肌
D.支气管平滑肌
E.膀胱平滑肌