滴定法测定水中酸度中,在滴定时,含有硫酸铝的水样应()后滴定。
参考答案:加热
报纸:新闻()
A.电影:电影院
B.报刊亭 :报纸
C.杂志 :广告
D.信封:信纸
How many years is construction of the new capital scheduled to take
A. About 23 years.B. About 27 years.C. About 30 years.D. About 13 years.