Man is eager to draw quick profit from the trees. Two thousand years ago a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire
I feel sure that _____ qualification, ability and experience, you are abundantly suited to the position we have in mind. A. in case of B. in terms ofC. in the opinion of D.
，设P：函数
在R上单调递减；Q：函数
的定义域为R，如果“P且Q”为假命题，“P或Q”为真命题，则c的取值范围是 