操作工人的操作质量，对焦炭质量无影响。
参考答案：错
Compared with his sister, Jerry is even more _____ to, and more easily troubled by, emotional and relationship
problems. [ ]
A. skeptical
B. addicted
C. available
D. sensitive
黄芩苷易发生（）
A.水解
B.氧化
C.变旋
D.晶型转变
E.蛋白质变性
