A:用氮气保存食品
B:用氢气填充探空气球
C:发热病人用酒精擦身体降温
D:用铜丝来做导线
—The meat is _________ delicious.
—Yes, but don't eat _________.
It's very convenient ______ us to buy train tickets now because we can buy them either from the station or on the Internet.
____
下列图片描述的是上周日下午,刘强和赵磊所经历的一件事,请根据这
些图片写一篇作文。
要求:1. 字迹工整,语法正确,意思连贯,合乎逻辑,可适当发挥。2. 词数在80~100词之间。