题目

Faced with a tough job market, fresh graduates are dreaming of running their own businesses instead.But a recent survey has showed that such ambitions lack the required support and remain just that—dreams. The Shanghai Municipal Employment Promotion Center poll of 1,276 graduates in several universities and colleges in the city, released last Friday, showed 59.78 percent of respondents considered the possibility of setting up a company or at least a small store. But they just stop at the 'thinking' stage, it stated. Respondents put the top reasons for not going it alone 在密闭容器中的一定量混合气体发生反应:xA(g)+yB(g)zC(g),平衡时测得A的浓度为0.5 mol/L,保持温度不变,将容器的容积缩小到原来的一半,再达平衡时,测得A的浓度增大为1.05 mol/L,下列有关判断正确的是 [  ] A. x+y<z B. 平衡向正反应方向移动 C. B的转化率升高 D. C的休积分数升高
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