（12分）有两个起始体积相同的密闭容器A和B，A容器有一个可移动的活塞，能使容器内保持恒压；B容器为固定体积。
起始时这两个容器分别充入等量的体积比为2∶1的SO2和O2的混合气，并使A、B容器中气体体积相等，并保持在400℃条件下发生反应2SO2+O2
2SO3，并达到平衡。
⑴ 达到平衡所需时间，A容器比B容器 ，两容器中SO2的转化率A比B 。
⑵ 达到⑴所述平衡后，若向两容器中分别通入等量Ar气体，A容器的化学平衡 移动，B容器中的化学平衡 移动。
⑶ 达到⑴所述平衡后，若向容器中通入等量的原混合气体，重新达到平衡后，A容器中SO3的体积分数 ，B容器中SO3的体积分数 (填变大、变小、不变)。
For many years, doctors have been studying the way the brain __1__. We all know that the brain has two sides, the left and right. That right side controls the __2__ and the left side controls our logical thinking. We call the left side the “education” side of the brain __3__ generally, in western countries, people have __4__ this side of the brain more than the right side. Scientists __5__ that our brain will work much more efficiently if both the right and the left side are developed __6__. In many schools today, teachers try to educate children in such a way that both sides of the brain are __7__. This can be done with logical subjects __8__ maths and science as well as with creative subjects such as art. Albert Einstein, the great scientist, did some of his best work when he was very old. He was interested not only in his work, but also in creative and imaginative __9__. It was because of his many different interests in life that he was able to __10__ the full development of both sides of his brain.
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