A：Silly you！
B：OK！
—Too much homework has made me tired these days, Mr. Wang.
—That's true. But a small tree won't grow into a big tree it experiences lots of winds and rains.
生殖过程中，人类的受精卵早期依靠卵黄供给营养并不断进行细胞分裂．受精卵逐渐发育成胚泡的部位是（ ）
郑观应在《盛世危言》中批评洋务派学习西方是“遗其体而求其用”,其意图是( )
