题目

用元素符号或化学式填空。（1）3个硫原子： （2）硝酸：；（3）8个水分子：；（4）三氧化二铁：。 答案：【1】3S【2】HNO3【3】8H2O【4】Fe2O3You read his books, and he wants to read your books ____. [     ]A. in all B. any more C. at allD. as well