根据课文填空 Water had also appeared on other planets like Mars but, 1 the earth,it ha

根据课文填空

Water had also appeared on other planetslike Mars but,   1 the earth,it had  2  later.It was not immediately obvious  3 water was to be  4 to the development of life.    5 manyscientists believe is that the continued   6   ofwater allowed the earth to dissolve  7 gases and acids into theoceans and seas. This produced a    8 reaction, 9  made  10  possible for life to develop.

试题答案

【答案】

 unlike

 disappeared

 that

 fundamental

 what

 presence

 harmful

 chain

 which

 it

【解析】略