- Could you please tell me _______?
- Of course.
A:how long you have borrowed the book
B:how you think of the newest movie
C:when the new shopping mall will be open
D:why do you like watching the program
实验:向盛有2mL 0.1mol/L Ba(NO3)2溶液的试管中,缓慢通入SO2气体,试管内有白色沉淀产生,液面上方略显浅棕色.
探究1:白色沉淀产生的原因.
给下面带下划线的字注音。
吝啬 ____ 抽噎 ____啜泣____ 苛刻____
晦涩 ____ 恍惚____ 馈赠____ 白皙 ____
①秦朝 ②西汉 ③西晋 ④东汉 ⑤隋朝 ⑥唐朝