题目

. ______ this job doesn’t pay very much, but ______ I can’t get another one. A. In the first place; in the second place      B. On one hand; on another hand C. On the one hand; on the other hand  D. For one thing; for another 答案：C7．已知 5KC1+KC103+3H2S04=3K3SO4+3Cl2+3H20，下列说法不正确的是（　　）A．KClO3在反应中被还原B．被还原与被氧化的氧元素的质量比为1：5C．H204在反应中既没被氧化也没被还原D．生成1mol Cl2时有2mol电子转移