设a是最小的自然数,b是最大的负整数的相反数,c是绝对值最小的有理数,则a+b+c的值为[ ]
A.2
B.1
C.0
D.﹣1
答案:B
_____ the fact that his initial (开始的) experiments had failed, Pro. White persisted (坚持) in his research. [ ]
A. Because of
B. As to
C. In spite of
D. In views of
防止燃煤产生的大气污染的法律措施?