Who will____us ____trees on Tree Planting Day?A.take ;to planting Bjoin,in planting C.join in,planting D.join ,to plantTom_____a third way to do the Maths problem,but it desn't work.A.found out B.thought C.looked for D.tried

#define INVALID_USER_ID ____T(Invalid ID), Who will____us ____trees on Tree Planting Day?A.take ;to planting Bjoin,in planting C.join in,planting D.join ,to plantTom_____a third way to do the Maths problem,but it desn't work.A.found out B.thought C.looked for D.tried ____t＝k √L/g求L 初三英语：单项选择Going to universiry will____us a lot of money . A ：spend B ：take C： pay D cost who Who WHO who who Who P冰=0.9X10的三次方kg/m=_____g/cm三次方__kg/dm三次方=____t/m三次方 7300kg=____t 0.25kg=_____g 1t=____kg 1g=____kg 1mg=___kg 用（ ）*10几次方 is it in the factory____ you visited last week ____t this kind of car is madeA./...thatB.where...whenC.where...thatD./...where选a,为什么不选d who 仅仅是who cares 等质量的二氧化硫和三氧化硫中分子个数比______含等量的氧元素的二氧化硫和三氧化硫的分子个数比为____T^T救命的啊~ Fill in the blanks with a'',''an or some1.some flowers 2.___beer 3.___melon 4.___peach 5.___peaches 6.___milk 7.___orange 8.___oranges 9.___matches 10.____T-shirt 11.____grapes12.___sugar Fill in the blanks with a'',''an or some1.some flowers 2.___beer 3.___melon 4.___peach 5.___peaches 6.___milk 7.___orange 8.___oranges 9.___matches 10.____T-shirt 11.____grapes12.___sugar 100t含FeS2质量分数为60%的硫铁矿,原料在空气杨华忠的总利用率为90%,该矿石最多可以值得硫酸铁____t.90t我想问过程...