题目

The parents suggested ___ in the hotel room but their kids were anxious to camp out during the trip. A. sleep                B. to sleep                    C. sleeping                   D. having slept 答案：C下列实验现象中，描述正确的是　 A．木炭在氧气中剧烈燃烧，生成无色有刺激性气味的气体B．红磷在空气中剧烈燃烧，生成大量白烟C．铁丝在空气中剧烈燃烧，火星四射，生成黑色固体D．水通电分解，生成氢气和氧气