A:枕籍狼籍恬退隐忍茕茕孑立
B:愧怍褴褛门衰祚薄山青水秀
C:贴切津帖理屈词穷委曲求全
D:悼念犄角掎角之势形影相吊
给下列句子选择合适的答语。
① How do you like this chess? ____ A. It's$50.
② How much is this sweater?____ B. Yes How much is it?
③ The socks are $50. ____ C. It's very pretty.
④ Can l help you? ____ D. They're too expensive.
小明家的电路简化后如图所示,观察该电路,下列说法中正确的是( )
在图上确定方向的基本方法是:上____、下____、左____、右____。