I feel better now.[ ]
A. many
B. not
C. much
答案:C
I ____ go to bed ____ I finished my homework. [ ]
A. didn't, when
B. /, until
C. didn't, until
D. won't, until
在一密闭容器中有如下反应:L(s)+aG(g)bR(g),温度和压强对该反应的影响如图所示,其中压强p1<p2,由此可判断
A.正反应为放热反应
B.化学方程式中的计量数a>b
C.G的转化率随温度升高而减小
D.增大压强,容器内气体质量不变