中国历史战争有哪些

一道微积分的题目就是不知道我画圈的地方是怎么到下一步的 This is My first 有描写桂林的成语 我想问一下高一男生跑800米什么成绩算理想11月就开校运会了、 我想提早一点找到训练方案、 我以前跑过1000米、 3分20秒,体育中考选项1000米就满分了、.但不清楚800米的标准是怎样的、 怎样 1、With a lot of tough problems ,the pilot was still calm,cooland collective under pressure.A．solve B．solved C．solving D.to solve2—I don’t care for baseball.—How can you say you don’t like something you’ve never even tried it!A．til 高一男生800米跑多快才能拿奖? 几道英语单选题.1.One's life has value ______ one brings value to the life of others.A.so that B.no matter how C,.as long as D.in vain呃C肯定翻译的通,我很好奇B为什么不可以?为什么不可以理解成“一个人的生命都是 求解英语单选题1.It's no good ____ remember grammatical rules.You need to practice what you have learned.[A] trying to [B] try to [C] to try to [D] that try to2.I reckon the election will result in another victory for the government,____?[A] do 微积分的 题 最后一步|dx/(x-3)(x+2) 一个微积分的题,f(x,y)=c(2-x-y),c为常数,x[0,1] ,y[0,1]这个怎么积分?表示没学过积分却要用积分算概率很痛苦...表示这个∫∫f（x，y）d(x)d(y)我知道,但是这一大堆表示的是什么意思我不知道 一个微积分的题 A lighthouse is fixed 100 feet from a straight shoreline.A spotlight revolves at a rate of 16 revolutions per minute,(32 rad/min ),shining a spot along the shoreline as it spins.At what rate is the spot moving when it is along t I fell in love with this kind of 两个英语单选题1.James has just arrived,but I didn’t know he_________ until yesterday.A、will come B、is coming C、was coming D、comes为什么选B?不太懂2.He is quite worn out from years of hard work.He is not the man he was twenty ye It usually____in February.A.come B.comes C.is coming It usually __in February or March 形容石头的成语,但不含“石”字,成语可以联想或者联系到石头的? My father usually lunch at home.填空补缺并翻译 My father and I are at home=My father --------me---------at home 【英语】She usually ____ home after 9:00 pm.横线上是填leaves,gets还是gets to? 8464什么意思 有谁知道8464什么意思`》?答对了赏本少爷 热吻一个!说真的 有谁知道 已知(x²+y²-3)(x²+y²+1)=12已知(x²+y²-3)(x²+y²+1)=12,求x²+y²的值 法国当地时间2010年12月24日中午12:30 对应的北京时间是多少 y=x²怎样平移得到y=x²+2x+8 英语单选题（请详细解释）1.Uncle Wang is going to Beijing.He is packing his suitcase____clothes.A.on B.with C.of D.in 2.----Can I help you?----I want____,please.A.two socks B.two pair of socks.C.two pairs of socks D.two pairs of sock3.____ 孤寂的反义词是什么? 2道英语单选题,要求正确答案和详细的解说1、He gets a good salary.His salary is very _______. A. good B. well C. fine D.beatiful2、His boat, ____________ is Topsail(一条船的名字),is famous. A.whose the name 反义词：孤寂（ ） 沉寂（ ） 英语单选题（请具体说明）1.Would you like to come to our house_____supper?A.at B.for C.with D.from2.Everyone in the room____quiet.A.is B.are C.were D.stand3.They____eat apples at all.A.always B.usually C.sometimes D.never4.How is the weath 孤单的反义词是什么 孤单的反义词试什么 若不等式f(x)-g(x)≥a的二次-3a的解集为R,求实数a的取值范围