Ŀ
ijͬѧѧϰʱһѧʵ顣ͼʾ⾭⾵γɲɫʵ˵__________ɵġ
ӰгĹõƻ䵽ĻϵġͶӰɫˮγɵġӰѧϷġӰüƬġӰȣͼ֪ʶӦϵȷ
A. B. C. D.
̽Ħʵ
1ëƤĦֽмΪ˵ɡһʵ鷢֣ʱǸ磬ѧϰԭӽṹ֪ʶΪ_____
A. ʧȥһЩ B. õһЩ C. ʧȥһЩ D. ˸
2ķëƤĦëƤ________硣ѡһһܡ
3ͨʵ֪̽Ȼ________ֵɣ֮õĹǣֵͬɻ________ֵɻ________
Сͼʾĵ·̽·ص㣬ͨ·ڵ·н²вֵܳ
A. ȡL1L2Ϩ
B. һ߽L1ˣL2
C. һ߽L1ˣL1Ϩ
D. ٴһֻݺL1L2
滭õϺȡ졢ơϣֻͣϣܽɫı仯ɣ
ķΧܹ㣬ܸоĿɼ⣬ֹ۸оģߡߡXߡߵȣƵʺͲҪ֮ĹϵΪ=/ƵʣͼΪͬƵʹͼףжһ£ߵIJߵIJ________/̣
Ĺ۲ѧʣȷ
A. ɫӻɫɺ졢ơɫϳɵ
B. ָ뾲ֹʱһʼָϣ京һʼָشųϼ
C. пڼ䣬ѧУΧֹѣΪԴIJ
D. ڣڼϴʱַЩˮ
һλ·ӵԱڱݣֻ̨úɫƹʱϵĹڿ·ɫ________ɫ________
еλȷ
A. 5.2m=5.2100=520cm B. 5.2m=5.2100cm=5.2102cm
C. 5.2m=5.2m100cm=520cm D. 5.2m=5.21000km=5.2103km