已知x=2是不等式（x－5）（ax－3a+2）≤0的解，且x=1不是这个不等式的解，则实数a的取值范围是（    ）                                           

B

    Today is Sunday. Mike and Peter 1 go to school. Listen! They are talking about the life 2 in the room.

    "3 will the world be like" asks Peter. "I think that the world will be a 4 place to live in. And we will 5 machines and robots at home. They will help us do lots of 6." says Mike.

    "The robots will help 7 cook dinner, clean the houses and 8 the old people. I think there will 9 a kind of medicine (药) and it can make me 10 more than 100 years ," Peter says.

    "What will you do then?" asks Mike.

    "Then I will take my great – grandchildren to the moon," says Peter. "The moon? I will go to the Mars (火星) with my wife ," says Mike.

如图1，抛物线y=ax²+bx+2与x轴交于A，B两点，与y轴交于点C，AB=4，矩形OBDC的边CD=1，延长DC交抛物线于点E．

法国的雨果说过“生活好比旅行，理想是旅行的路线，失去了路线，只好停止前进。”下了说法与此相近的是（    ）