灯L1、L2上分别标有“6V 6W” 、“6V 3W”的字样,当串联在电路中,实际功率之比是:[ ]
A.1:1
B.1:2
C.2:3
D.3:2
答案:B
20世纪20年代左右至建国初期,在介绍和引进西方游戏理论的基础上,开始了我国儿童游戏研究工作并奠定了我国儿童游戏研究基础的是( )
A.张雪门
B.陶行知
C.陈鹤琴
D.蔡元培
单词拼写 (本大题共10分,每小题1分)
小题1:Who is in the_________________ (游泳) Club in your class?
小题1:
小题2:The _______________ (主人) are playing with their dogs on the grass.
小题2:
小题3:How ________________ (讨人喜欢的) the cat is!
小题3:
小题4:He tells us a ________________ (真实的) story.
小题4:
小题5:What do you usually do in your_________________ (空闲的) time?
小题5:
小题6:How many________________ (play) are there in your team?
小题6:
小题7:Do you know the boy wearing__________________ (glass) over there?
小题7:
小题8:Linda often goes to the______________ (dance) lessons on Saturday.
小题8:
小题9:Now you are the_________________ (member) of the club, boys.
小题9:
小题10:The football stars are my ______________ (hero). How wonderful they are![
小题10: