题干
There's too much fog today so they decide .
A：to go out
B：not to go out
C：going out
D：not going out
答案(点此获取答案解析）
B
There's too much fog today so they decide .
A：to go out
B：not to go out
C：going out
D：not going out
+ 14HCl (浓) ="2KCl" + 2CrCl3 +3Cl2↑+7H2O，当0.1molK2Cr2O7反应时，可知