配置酚甘油滴耳剂有时呈浅蓝色，如加入少量枸橼酸钠可防止，其原因是
A．增加溶解度B．防止氧化作用C．调整pH值D．络合作用E．防止水解
参考答案：D
首字母填空。
L 1 at the boy over there. H 2 Jim Green. Jim is eleven and I'm twelve. He is an English b 3 , He is my n 4 friend. We are in C 5 Two.
This is o 6 school. I 7 Zhouzhuang Middle School. It is big and c 8 .My father is a t 9 at the
school. We like our school v 10 much
《星星索》是广泛流行在我国的（）国民歌。
A.俄罗斯
B.印度尼西亚
C.朝鲜
