题目

Sonia Hall喜欢运动，她不仅每天运动，而且常在电视上看比赛。她收集了5个篮球，3个排球，9个足球，6个网球拍，8个乒乓球和2个球拍。写一段话，介绍一下Sonia Hall所收集的体育用品。 答案：My friend Sonia Hall has a great sports collection. She has five basketballs, three volleyballs, nine soccer balls amd eight ping-pomhs. She also has six tennis rackets and two ping-pong bats. She plays sports every day. She also watches soccer games on TV.物质的性质决定其用途。下列因果关系不成立的是A．镁燃烧能发出耀眼的白光，所以可用于制作照明弹B．因为磷燃烧能产生白烟，所以可用于制作烟幕弹C．因为氮气化学性质不活泼，所以可用作保护气D．因为氧气能支持燃烧，所以可用作燃料