题目

根据对话内容,从下面方框中选择适当的单词或词组填空,使对话内容完整正确      medicine,      started,      terrible,      often,      wrong    B: Bob                  D: Doctor D: Come and sit down, Bob. What’s  1  with you? B: I have a   2  pain in my stomach, doctor. D: I see. When did it start? B: It   3  yesterday. I didn’t want to eat anything. I’m not feeling well now. D: Let me see, er, you have a fever. B: I’ve got a headache, too. And my throat hurts. D: Well, you’ve caught a bad c相同温度下,在体积相等的三个恒容密闭容器中发生可逆反应:     N2 (g)+3H2(g)2NH3(g) △H=- 92.4 kJ/mol。 实验测得起始、平衡时的有关数据如下表: 容器编号[来源:Z|xx|k.Com] 起始时各物质物质的量/mol 达平衡时反应中的能量变化 N2 H2 NH3 ① 1 3 0 放出热量a kJ ② 2 3 0 放出热量b kJ  ③ 2 6 0 放出热量c kJ 下列叙述正确的是                                                              (    )     A.放出热量关系:a<b< 92.4     B.反应的平衡常数:③>①>②     C.达平衡时氨气的体积分数:①>③     D.N2的转化率:②>①>③
英语 试题推荐