问题
多项选择题
控制实验法包括的基本要素是()
A.实验室
B.实验者
C.实验变量
D.实验对象
E.实验观测
答案
参考答案:B, C, D, E
控制实验法包括的基本要素是()
A.实验室
B.实验者
C.实验变量
D.实验对象
E.实验观测
参考答案:B, C, D, E
综合填空。(选择框格内所给词的适当形式填空,每词限用一次)(10分)
On that day, Lucy gave _____小题7:___ the card. After she saw the card, a tear (眼泪)_____小题8:___down from her face. "Why are you____小题9:___?" Lucy asked, "You don't like it, right?" "Of course not," she said, "I love it very much. I'm the ____小题10:____ mother in the world. I have such a great daughter. " |