将过量的二氧化碳通入澄清石灰水中，最终形成的是（ ）
A．悬浊液
B．乳浊液
C．溶液
D．纯净物
答案：C
为什么肿瘤可以用诱导分化的方法治疗？
Who would you rather _____ with you tomorrow morning? [ ]
A. had do
B. have gone
C. have go
D. have to go
