工业及建筑工地噪声污染可直接向（）投诉，投诉电话是12369。
A.市政委
B.市环保局
C.市公安局
D.市建委
参考答案：B
设a，b，c为实数，f(x)=(x+a)(x2+bx+c)，g(x)=(ax+1)(cx2+bx+1)，记集合S=|x|f(x)=0，x∈R|，T=|x|g(x)=0，x∈R|，若|S|，|T|分别为集合元素S，T的元素个数，则下列结论不可能的是 [ ]
A、|S|=1且|T|=0
B、|S|=1且|T|=1
C、|S|=2且|T|=2
D、|S|=2且|T|=3
Finding her car stolen, ______.[ ]
A. a policeman was asked to help
B. the area was searched thoroughly
C. it was looked for everyone
D. she hurried to a policeman for help
