以下关于管理信息系统特点的说法，错误的是（  ）

以下关于管理信息系统特点的说法，错误的是（ ） A.管理信息系统是一个“人—机”合成系统 B.管理信息系统是一个一体化集成系统 C.管理信息系统是信息系统的一个子系统 D.管理信息系统是模型驱动的 答案:D

已知函数f（x+1）=x2+2x+9，则f（x）=-x2+8.

已知函数f（x+1）=x2+2x+9，则f（x）=-x2+8. 答案:错误

函数y=x2+2x-7在区间（-4，4）内满足（　　）．

函数y=x2+2x-7在区间（-4，4）内满足（ ）． A.先单调下降再单调上升 B.单调下降 C.先单调上升再单调下降 D.单调上升 答案:A

函数y＝3cosx的值域是（　　）．

函数y＝3cosx的值域是（ ）． A.[－3, 3] B.(－3, 3) C.[0, 3] D.(0, 3) 答案:A

This plant can't be exposed ____________strong sunshine.

This plant cant be exposed ____________strong sunshine. A.in B.to C.by 答案:B

People __________ foxes __________ clever but sly animals.

People __________ foxes __________ clever but sly animals. A.consider…for B.consider…as C.consider…X 答案:B

I have trouble in ________ my homework.

I have trouble in ________ my homework. A.do B.done C.doing 答案:C

Brand was Jane's brother!

Brand was Janes brother! – he reminded me so much of Jane! A.No doubt B. Above all C.No wonder 答案:C