【单选题】一Mark, what ( ) your parents ( )? 一They are watching TV in their room.
【单选题】Mark is watching TV now.(改为否定句) Mark TV now.
【简答题】欲使图示电路能产生正弦波振荡,图示电路中变压器两边绕组的同名端应为 和1,放大电路的基本组态是______。(答案间用中文分号;隔开)【图片】
【简答题】阅读理解 Jan:I have new photos of my family, but they' re not very good. This is my sister... Mark:Where is she? Is she at the library? Jan:No, she' s in the living room. She’s doing her homework. And th...