ΪʲôҪ֤̰
һѧ֪ʶ״
ѧļܻ꼶Ͱ꼶ѧѧϰ˺ܶ뼸ص֪ʶΪĽһѧϰ֪ʶͬʱѧҲ˺֤ܶۺԵḶ́˳˼ά õ˺ܴߣΪϵͳѧϽõĻ.
ѧ ļѧϰУѧѾ˶ԼͼεĹ۲졢Ƚϡֲ²⡢ɵȻԽ 챾ڿεķۡ̽Ȼкܴ .
ѧ
ѧֱѧѧҪһ棬ѧжͼεֱ ۸֤ܶܽʱǻĽۣʱšܿ϶𡷵Ľѧѧֱ۸ʵʽ֮˼άϵײӶʹѧԭеֱ۸оɣ ȷijһк֤ıҪԡˣʱĽѧĿǣ
1.ʵ֤ٷ֤֤ȷ֤ijЩĽȷ.
2.۲졢֤ɵȹ̣ʹѧЩõĽ۲ɣԴ˼ѧĺģӶʶ֤ıҪԣѧʶ.
3.˽ѧ۵ij÷ʵ֤ٳ֤.
ΪʲôҪ֤ͬ
1.˵ȷ( )
A.顢۲ȫжһѧ۵ȷ
B.ǿѧҵ£ûжĹϵ
C.Ȼnn2+n+37һ
D.10ƻŽ9Уһеƻ2
2.нܿ϶( )
A.꣬һ
B.Ļһܱ6
C.Сѧһܻ
D.Ƭһ϶յIJͬһ
3.СǰѧԪԶ㣬εԪҲһ㣬ж_______.(ȷ)
4.õ( )
A.x=1y=1x=y
B.۲õıĸڽ
C.ʦǹڽ
D.ɹֻ֪һֱ
5.ȷ( )
A.a>bb>ca>c
B.a>bac>bc
C.AOB=BOCǶԶ
D.ǵĺ͵180㣬ôǻΪڲ
7.1ΪʲôҪ֤κϰ
2.ѧκڷֲٳϵԱһôӰӺƽУҿ϶ʱõİ취()
A.ǰ塢ֱߣͨƽǰ֤ӰǷƽ
B.ԼӰӾƽе
C.켸ģͣѧ֪ʶ֤
D.һֱ߽ӰӣͬλǵĶӰƽ
3.˵УǶ;ڴ90СƽǵĽǶ۽;ۻΪ෴Ϊ0;l1l2l1l3l2l3.ȷ()
A.٢ B.ڢ C.ۢ D.ڢ
4.P(P5)һP2124û()
A. B.ֻʱ
C.ǿ D.ֻеP=5ʱ
5.нۣܿ϶()
A.磬Ȼ
B.Ļһܱ6
C.СѧɼһܺãľȻܻһȽ
D.Ƭȫһ֪űȻͬһŵƬϴ
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