鼻泪管末端的开口部位是( )
A.中鼻道B.下鼻道C.上鼻道D.泪点E.泪囊
参考答案:B
This kind of bike looks _____ and sells _____ in the shop.
A. nice, well
B. good, good
C. nicely, well
D. good, nice
______指学习者为了提高学习的效果和效率、有目的有意识地制定的有关学习过程的复杂的方案。