题目

 ________，the football game has been decided not to be put off. A．Heavily as did it rain             B．As it rained heavily C．Heavily as it rained              D．As heavily it rained possible 答案：C用化学用语填空：（1）2 个氢原子__；（2） 2 个氮气分子__；（3）3 个钠离子__； （4）四氧化三铁__；