如果f（x）=e-x，则（）
A．
B．
C．-lnx+C
D．lnx+C
参考答案：B
解析：
∵
A．Two detectives investigating the case had tested positive for traces of radiation.
B．The ex-wife and the former mother-in-law of the spy were also poisoned.
C．The Russian businessman who met the former spy in London has fallen ill.
D．There is a high degree of probability that it is polonium that killed the spy.
被伊斯兰教、基督教、犹太教都看作圣城的是（）
A.耶路撒冷
B.巴格达
C.德黑兰
D.麦加
（）
（）