An ecosystem consists of the living and nonliving things in an area __________ i

题干

An ecosystem consists of the living and nonliving things in an area __________ interact(互相作用) with one another.

A．that

B．where

C．who

D．what

上一题下一题 0.64难度单项选择更新时间:2015-01-15 08:43:16

小学学科试题库

初中学科试题库

高中学科试题库