A:①③④
B:①②③
C:①②④
D:②③④
据报道,进入20世纪后,几乎每年至少有一种鸟类或哺乳类动物从地球上消失,造成也野生动物濒危和灭绝的主要原因是( )
按拼音写汉字。
cì wèi
qì fèn
shì cóng
____
They promised to develop a software package by the end of this year, ____ difficulty they might have.
The hospital is very famous. It _______ in 2001.