________what has recently been done to provide more buses for the people,a shortage of public vehicles remains a problem.
A:Except for
B:Due to
C:Because of
D:In spite of
先看图写出分数,并比较大小。
____ ____ ____
当代人类面临着诸多问题,如____,资源的保护与____,____的开发、
____的和谐共处等,这些问题的解决都有赖于化学科学的发展.