控释制剂释药速度为()级。
参考答案:零
战略目标的基本内容有()。
A.成长性目标
B.稳定性目标
C.增长性目标
D.竞争性目标
E.紧缩性目标
After supper she would sit down by the fire,sometimes for _____ an hour,thinking of her young and happy days.
A.as long as
B.as soon as
C.as much as
D.as many as