2、,9$&+/8,#&%’8=#9=8’+’8)+$%’.19’&%4’8+)9’8)%/95#’%4.(#)’G.$,&0*-(,")!_!‘a-K"3L9"F’+4+$.#&+/W9$&+/8,#&%’8=#9=8’+’8)+$%F’.1W9%)8(%/9(+5#/LM"NO+’LM"1PQ’"O>3R>’QM3*’>R’a%)09a6>96#9;>9;%9U>9U89bG9?.#9#,,84%419+,9!F’+4+$.#&+/98)9%9"#$%&’(#)’*+,*-$.’.%/(+/+012*’.#*3#4+)5*
3、6+7$8’%/9+,*3.%):8*&%JJ8’9(+5#/9+,9$&+/8,#&%’8=#9=8’+’8)+$%’.1G9P)’b-$.’.%/(+/9>9;#584%/*<)8=#&78’1>9?%81@%)9ABAAAC>93.%):89D&+=8)4#>9E.8)%MAANWN[M]LMTVFMcAS(%%>T.("U>"K>#(?!"#$%&’!"#()"#$%&’(#)’9+,9-$.’.%/F(+/+0129’.#93#4+)596+7$8’%/9+,93.%):89;#584%/9<)8=#&78’129?%81@
4、%)9摘要ABAAAC293.%):89D&+=8)4#29E.8)%G9H%)0H.@8I$@J/84G’1G7:G4)目的:$%+’,-&’()*+,-+./012K#4#8=#5L9MAANFACFBA34567,89:;617,.(’,方法:!"<=>?’@A0BC./0DEB5FGBHEIHCA(@AJKL;&MHNOAGT(UP!OP;L*?+*#=%/@%’#*’.#**8).8J8’*%J8/8’1*+,*"F’+4+$.#&+/*’+*QRSJTTA#(+’,-HNO.)/01U/.#(+’,-’.#*$&+/8,#&%’8
5、+)*+,*8)Q#4’#5*8)’&%+4@/%&*,8J&+J/%7’*4#//7G6PQRSJT2..#(+’,-)*HNO.)/01U!;!?6-"3L*R8,’##)*&%JJ8’7*@)5#&H#)’*0%7F4+($̊+)*2..#(+’,-6PQJSJ;VWE3H./0XY=8’’+(1G*O,’#&*B*5%17>*’.#1*H#*58=85#5*8)’+*B*0&+@$7*/%)5*@)5#&H#)’*0%7S,/@85*#:4.%)0#G*?.#*4+)’&+/*0&+@$*Z[.)201U4)/*2.
6、6]^_‘aJ;bc*H%7*08=#)*AGT(U*J%/%)4#5*7%/’*7+/@’8+)*H8’.*VGT(USU*def(g567Ehijk+123lm6n-o#’.%(+/W*’.#*TA#(X8’!*0&+@$*H%7*08=#)*TA#0*"F’+4+Fp;489Fqr(sE94tuvEwdcx;$.#&+/*8)*AGT(U*J%/%)4#5*7%/’*7+/@’8+)*H8’.*VGT(USU*结果:!#$WE&MHyTA#(+’,-z2..#(+’,-#’.%(+/G*CAA#0*X8’!*0&+@$*H%7*08=
7、#)*CAA#0*"F’+4+FHP{:+;n-
8、}~3=4)5=4;ef6$.#&+/*8)*AGT(U*J%/%)4#5*7%/’*7+/@’8+)*H8’.*VGT(USUG*?.#*T467ENH:+;6n-ENHz&MB*0&+@$7*%/7+*#8=#5*MGT*CA*,8J&+J/%7’7*8)Q#4’8+)G*R@)F5@7*#=%/@%’8+)*H%7*$#&,+&(#5*5@&8)0*%*,+@&FH##Y*$#&8+5G*H+:>.<./?;?.#*(+J8/8’1*+,*’&%4’8+)%/*’8)%/*
9、5#’%4.(#)’*H%7*+JF结论:./0XZ[X8’!6RSJbDXK7#&=#5*H8’.*+$.’.%/(+74+$#*687’+$%’.+/+01*H