身高的增长受以下因素影响,但除外()
A.遗传
B.短期疾病及营养波动
C.内分泌
D.宫内生长水平
E.睡眠
参考答案:B
Air pollution is getting more and more serious, so we must take action ________ it is too late.
A.before
B.after
C.until
D.when
在《红楼梦》第三十四回中,林黛玉一共写了几首题帕绝句?