对易氧化药物要特别注意的因素是
A.光B.氧C.金属离子D.光、氧、金属离子E.湿度
参考答案:D
. I support your decision, but I should also make it clear that I am not going to be _____ to it.
A.connected
B.fastened
C.bound
D.stuck
记忆的内容不能保持或者提取有困难就是遗忘。