朋友之间需要彼此_________。尊重朋友就要懂得尊重朋友的________。
尊重;自尊心
将一定量的Fe、Cu放入AgNO3溶液中,待反应完全后过滤.
(1)若向滤液中加入少量盐酸,不出现白色沉淀,则滤液中一定含有______,没有______.
(2)若向滤渣中加入少量盐酸,产生气泡,则滤渣中一定有______,滤液中的溶质是______.
He didn't give me _____ time when we would meet next time.[ ]
A. certainly.
B. sure
C. surely
D. certain