hold与have的区别

lim x趋于0 f(x)/x^2=5 求lim x趋于0 f(x)=? 若f(x)在x=0上连续且lim(x趋于0)f(x)/x=2,求f'(0)=多少? 苍蝇可以持续飞行多长时间?如果一直不让苍蝇落地休息,过多长时间它才会累得无法飞行? 求一首歌的名字!女声的,节奏感很强,中间有一段give me a free free free.还是give me a break...之类的如题. 苍蝇的生活温度是多少 Are you often listen to music in your free time?没学过 但报纸有 We break the peace,I want to free if you are frozen-press ok rapidly to break free的意思 若a+b+c=0,且a≠0,则一元二次方程a㎡+bm+c=0必有一个定根,它是 若t是一元二次方程a㎡+bm+c=0(a≠0)的根,则判别式△=b的平方-4ac和完全平方M=(2at+b)的平方的关系是? 若a十b十c=0,且a≠0,则一元二次方程a㎡+bm+c=0必有一个定根,它是什么 1千克桔子的价钱是3.4元,买x千克,付出50元,应找回（）元? 或者不是,共调查了1000人,300人回答是,请估算其中有让座行为的人数是? Error (10278):Verilog HDL Port Declaration error at led_display.v(9):input port "data_in" cannot be declared with type "" 1.Are you in high school or are you still in the grades? 1.Mary ____ a gift from tina,but she didn't seem to _______it A.received;accept B.received 1.Mary ____ a gift from tina,but she didn't seem to _______itA.received;accept B.received receive C .accepted;accept D.accepted;receive I ___ the gift,but I did not accept it.Ahad received B received i has received a gift ,but i didn't want to accept这句话是否正确 英语 I ____ an expensive gift for my birthday,but I could not ____ it.A.accepted,received B.re accepted accepted 求you are the music in me的歌词 you are the music in me 的歌词是什么.是zac版的,帮帮忙哦 一个正方体的体积为216cm的立方,将它锯成27块同样大小的正方体,求每个小正方体的表面积. 在直径8m的水管中,水流速度是每秒2.5m,那么5分钟流过的水有多少立方米? 花园小学三,四年级一共有313人.如果三年级增加8人,四年级减少5人,那么两个年级的人数正好同样多.三,四年级原来各有多少人? 如果三年级增加8人,四年级减少5人,那么两个年级的人数正好同样多.三、四年级原来有多少人? John received a birthady present,but he didn't a( )it .空格处应该填什么开头字母已给出 花园小学三.四年级一共有313人‘如果三年级增加8人四年级减少5人.那么两个年级的人数正好同样多.那么三.四年级原来各有多少人? all of us want to buy he a present.同义句()()want to()a present()her. 花园小学三,四年级一共有313人,如果三年级增加8人,四年级减少5人,那么俩个年级的人数正好同样多,三,四年级原来各有多少人? 花园小学三、四年级一共有313人,如果三年级增加8人,四年级减少5人,那么两个年级的人数真好同样多、三、四年级原来各有多少人 he didn't want to run but to walk. but后面的to 要不要?求教那如果是he didn't want to do but acpect? 就不要to？