11 A 12 C 13 A 14 D 15 C 16 B 17 BCD 18 ACD ⣨26֣ 19 ѹԶ룻
201ûнӵأɴ磻Ӧðѵ߽ϣ 2ԣУ
211?Gh/2Fh100%83.3%
2趯G02FGG0G040ţ
ΪG䣬˵ΪG1ʱΪF䣬F䣽G1
2F䣽G䣫G0G䣽2F䣭G01160ţ
22136N210N33.6103K/m3
4ڽûǰйأû䡣
23ң1P=U2/RɵõݵR=121֣I=0.5A
2SպϣS1S2ϿʱLͻҵ⣬U=U- U=12V-6V=6V1֣R=122֣
3պSS1S2ʱR0ͬP=U2/R֪Ҫʹ·ĵĹСҪʹ·ܵƬӦõbˣ1֣ʱIС=I0+IR=7/6A1֣ʵãPС=UIС1֡
A յ֧AҪ㹻
ġʵ̽⣨30֣ 24DC
25 167g2ձûװˮ 3m2-m1 mˮ/( m2-m1)
26ͬͬ¶յȣ ͬͬյߵ¶ȳ 1 3
271桢IJͬһ߶ȣ2Ŵ3С4D 281ͼ3֣
2D
3ƽֵ 4B, C
5Ȳͬ˿¶Ȳͬ µ˿ĵ費ͬ

