居①数月,其马将②胡骏马而归。(《塞翁失马》)
策③之不以其道,食④之不能尽其材,鸣之而不能通其意。(《马说》)
一鼓作⑤气,再⑥而衰,三而竭。(《曹刿论战》)
①居:____;②将:____;③策:____;
④食:____;⑤作:____;⑥再:____
已知y= 3x-2 + 2-3x +1,则3x+y=____.
----What are you going to be when you ____ ____ (长大)?
---- I am going to be a ____. That's my ____ (梦想).
有科学家尝试在实验室里“将狗的卵细胞发育成囊胚”,若能实现则下列预测中不可能的是 ( )