⡿ijɷй?0ˣעr600Ԫɶ2/3ϱͬ⣬錢ù˾ι˾Դˣf_()
A.ֻι˾ɷ˾ɷ˾ñι˾
B.˾Թɷ˾Ҫι˾]ֱfͿ
C.ɶ50nעrx?
D.ɶx䣬ע?0Ԫª
[]C
[]˵ıӛݡ˾涨ɷ˾ι˾Ϲ˾涨Ҫ?0nעr3Ԫϡɷ˾Ĺɶ]ƣɶ50fģι˾r뽫ɶ?0n
⡿PҎ˾r˾ǼǻذǼ()
A.I?
B.?
C.סӼI
D.עr
[]ACD
[]˵ӛ˾Ķ¡¡ģֻԭ˾Ǽǻر
5.עǼ
˾ɢעǼ˾ǼǻעǼ˾ֹ˾ɢһDzҪģϲɢĹ˾ɺϲĹ˾м̣ģ˾м̵ġ
6.ֹ˾ĵǼ
ֹ˾ָ˾סĴ¾IĻҵʸľӪΧó˾ľӪ?
(1)˾ֹ˾ģS֮30ֹ˾ԑصĹ˾ǼǻǼ;߹Ժ涨йزģ֮30˾ǼǻǼǡ
(2)ֹ˾Ĺ˾ǼǻǼqģII˾Էֹ˾Ǽ֮30ڣַֹ˾ġII˾Ǽǻذ
⡿ɷӪؔҵģϺùɷ?)
A.ֹ˾ԑصĵǼǻǼ˾ǼǻGǼII
B.˾ԑصĵǼǻ뷨˵ӛӛQӛӛӪҵ֜ȡ÷?
C.ֹ˾ľI˾ľӪΧһ£Ӫؔ?
D.ֹ˾ľI˾ľӪΧԑK£ӛ?
[]AC
[]˵˾ģӦԾ?0ֹ˾ԑصĹ˾ǼǻǼxA_xB;ֹ˾ľIQ˾ľIxC_xD
7.ȼ
˾Ǽǻÿ31630Թ˾ȼϤȼӦύIJϡ
ι˾
1.
(1)ɶ
ι˾50¹ɶ]Ĺ涨ݡ˾涨ι˾ʽһι˾
(2)ɶgﵽg?
ι˾עr3Ԫι˾עrн߹涨ģ涨(һι˾)
ע⣺ʹP?עrݠɵ(IIע)
C
˾ȫɶRõע?0%ҲõԖעr(3Ԫ)ಿɹɌ?V;УͶʹ˾5V?