预防晕刮应注意对（）做好解释工作。A、初次接受刮痧保健者 B、精神放松者 C、身体强

解下列方程：

（1）（x-1）（x+2）=2（x+2）

（2）x²+3x=9．

在设计平面弯道视距限界时，要求在限界内必须清除高于( )的障碍物，包括高于1.2m的灌木和乔木。

A．1.2m

B．1.5m

C．2.2m

D．2.6m

“十一五”时期，我国对外直接投资达到2200亿美元，年均增长30％左右，全球排名由“十五”期末的第十八位跃升至第五位。对取得上述成就的原因认识正确的是                                                    [ ]

A．这是我国坚持党的基本路线的结果    

B．这表明我国人民的生活水平的较大提高

C．这标志着我国国际地位的提高        

D．这表明我国经济建设取得了巨大成就

一个不平衡的平面汇交力系，若满足∑Y=0的条件，则其合力的方位应与（）轴垂直

Allen: I’ve never been a big fan of the bears, especially the vacation show. On my last trip to Disneyland(1999) we passed it by, because we didn’t want to spend the time on something we didn’t really enjoy. If we’d known it would be closed by our next visit, I’m sure we would have watched it one more time. I was just making the point that it wasn’t until Disney announced the closing that this feeling suddenly sprang(弹跳) up for the Country Bear show at Disneyland.
But I think the idea of keeping some attractions open forever regardless of the number of visitors it gets is a mistake. We all have great memories of the Bears, but clearly very few kids today (or I should say families today) are making those same memories from this show. That may be a sad fact, but it’s a fact. For whatever reason, the show doesn’t pull in the numbers. Isn’t it right to use the Country Bear space to bring in more popular attraction so that more kids today can make those magic memories of an attraction they like Otherwise aren’t we just telling the kids today that they "have to" make great memories of the Bears, when it’s obvious that the kids themselves are not enjoying the Bears as we did
Roger: I am very disappointed that they have decided to retire the Country Bear Playhouse. I remember going to the show as a child, and still enjoying it as a teenager, and now as a young adult. It is true that there aren’t a lot of shows left at DL and with this one closing even less. Being at DL does require a lot of walking, and it is nice to have an attraction that is a place to sit and enjoy a good show. I understand that DL has to develop, but there has to be some history to the Disneyland that Walt Disney first designed. There should be some parts of DL that just never go away and this is one of them. By the time I have children it looks like there won’t be any attractions that I can say. I went as a child at the rate they are going.
Now the Bears are leaving. What I want to say is: stop trying to compete with everyone! DL is the best, because of attractions like the Country-Bears. If DL insists on destroying all of its magic to make way for the latest, well, then it might as well be just another theme park.

Allen spoke mainly to get this point across that ______.

A．the Bears will be missed

B．we should tell the kids today that they "have to" make great memories of the Bears

C．the longtime attraction ought to make way for a future attraction

D．people never care about what they have until all is lost