题目

完形填空Growing flowers from seeds needs both physical work and self-control. One must take care of the seeds, and make sure they get watered on 1 basis and believe they will actually produce flowers beautifully. Thus, 2 beautiful flowers without mistakes is a miracle (奇迹), which needs to be fed,3 and hard work. How does the same thing 4in life?The miracle I dreamed of was to become an excellent5.I would, to be honest, sit in front motivational speakers as they spoke, 6 one of them would spot something valuable in me and encourage me to follow my 7.I neither said anything nor did anyth 某可逆反应平衡常数表达式为K=。达到平衡状态时，如果升高温度(其他条件不变)，则c(NO)减小。下列说法正确的是 （   ） A.反应的热化学方程式为NO2(g)+SO2(g)NO(g)+SO3(g)　ΔH>0 B.一定条件下达到平衡时，缩小容器体积，增大体系压强，气体颜色加深 C.混合气体的平均摩尔质量保持不变，说明反应已达平衡 D.使用合适的催化剂可使该反应的反应速率和平衡常数增大