如图,AD是△ABC的高,DE∥AC,DF∥AB,则△ABC满足条件____时,四边形AEDF是菱形.
如图为碳循环示意图,甲、乙、丙表示生态系统中的三种成分,下列叙述不正确的是( )
⑴Where is the school? ____ A. I read books.
⑵How tall is your mom?____ B. He's a postman.
⑶What did you do last Monday?____ C. It's next to the library.
⑷What does your uncle do?____ D. 1. 65 meters.
⑸Do you like watching TV?____ E. Yes,I do.
小刘同学尝试制作果酒,他将葡萄汁放入已灭菌的发酵装置中进行试验(见图),恰当的做法是