PO1 and PO2 should be sent out the same day by air.请问这里的the same day前需要加on

PO1 and PO2 should be sent out the same day by air.请问这里的the same day前需要加on You should work hard and b---- ourselves. 在lingo中派生集怎么赋值在lingo中……x1;x2;x3;y1/y10,y11,y12,y13,y14,y15/:i;y2/y20,y21,y22,y23,y24,y25/:j;y3/y30,y31,y32,y33,y34,y35/:k;po1(x1,y1):pa;po2(x2,y2):pb;po3(x3,y3):pc;在sata 中 我该怎么样 对 pa,pb,pc,赋值啊 圆o1与o2交于A,B两点,P是圆o1上的点,连接PA,PA交O2于CD,求证；PO1垂直CD, you should work less------A .and neither should I B .and so should I,C.and nor should I .D.and so I should选哪个?为什么?less 不是否定吗? 机体剧烈运动时（）A.呼吸道阻力减小B.血液〔H+〕升高C.血液CO2升高D.组织PO2下降E.肺通气量增加 如图,圆O1、O2相交于A,B,P在圆O1上,PA,PB的延长线交圆O2于点C,D,PO1的延长线与圆O1相交于点E,与CD相交于点F,求证：PO1⊥CD A and B should coordinate with each other还是should be coordinate with each other?那句话正确? 已知,圆O1与圆O2相交于A、B.P在圆O1上,PA、PB与圆O2分别交于C、D,求证：PO1的延长线PE⊥CD 圆O1与圆O2交于A、B两点,P是圆O1上的点,连接PA、PB交圆O2于C、D,求证：PO1垂直于CD 初三上圆与圆的位置关系圆O1与圆O2交于A B两点,p是圆O1上的点,连接PA PB交圆O2于C D,求证PO1⊥CD 圆O1与圆O2相交于A,B两点,P为圆O1上一点,作;PA,;PA延长线交圆O1,圆O2于C,D,求证：PO1⊥CD _our country stronger and more beautiful,we should study hard.A.to make B.making We should encourage young and healthy people to donate b首字母填空 You should do__ your parents tell you.A,as B,that C,and D,though A;( )and( ) should we meet?B;Let's meet at the zoo gate at:9;00. we-------study hard for our parents and ourselves A can B have C may D should Doctors should work hard to save sick and wounded.A a B some C the D /