【判断题】理论知识是科学理论、创新思维的源泉,是检验真理的试金石,也是青年锻炼成长的有效途径。
【单选题】( )是科学理论、创新思维的源泉,是检验真理的试金石,也是青年锻炼成长的有效途径。
【单选题】What is exciting about the new fuel cells? 查看材料
A.
Their limitless power generation capacity is amazing.
B.
Their limited power generation capacity is a good beginning.
C.
Their limited power generation capacity is the result of great efforts.
D.
Their limitless power generation capacity is a major accomplishment.
【简答题】水体污染包括重金属污染、水体富营养化和__________等方面。
【简答题】Primary cells, secondary cells and cells are three types of cells and batteries. (fuel / solar)
【简答题】There are 3 types of cells and batteries: primary cells, secondary cells, (fuel cells / recharging cells).
【简答题】水体污染越来越严重,怎样防止水体污染呢?(3分)
【单选题】( )是科学理论、创新思维的源泉,是检验真理的试金石,也是青年锻炼成长的有效途径