【单选题】光盘存储器是一种利用( )技术存储信息的装备。
【简答题】Look and choose. (看图片,选择恰当的答语) A. She’s my grandma. B. Good morning. C. I have four. ( )1. ( )2.
【判断题】矩磁铁氧体是具有矩形磁滞回线,且矫顽力较小的铁氧体,广泛应用于电子计算机、自动控制和远程控制等尖端科学技术中,用于制作记忆元件、开关元件和逻辑元件,磁放大器、磁光存储器及磁声存储器等。
【判断题】商品交换在世界范围内扩展,必然形成世界历史
【简答题】Look and choose. (看图,选择恰当的句子) ( )1. A. The bag is very heavy. B. The bag is very light. C. I like the bag. ( )2. A. We are a dragon kite. B. We are flying a kite. C. They are standing f...
【简答题】Look and choose.看图,把单词与正确的图片相匹配。
【简答题】Look and choose. (看图,选择正确的句子) A. Oh, no. B. What's your name? C. Good morning! Mr Brown. D. Where are you from? ( )1. ( )2.