小丽计算一道除法算式时,错把被除数21.6写成了12.6,结果商正好比原来小了3.75.正确的商是____。
人类是由受精卵发育成新个体的,下列模拟受精卵的发育过程,叙述不正确的是( )
—How many ________ are there on the table?
—Three. Are you thirsty? Let's cut one and eat it.
关于日本自然资源的叙述正确的是 ( )