如何写自己的缺点
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火箭发射后,轨道半径变大,为什么还要达到7.9km/s才能成为卫星根据v^2=GM/r半径变大后速度就可以变小.火箭发射后,轨道半径不断变大,那么它的环绕速度就变小.
卫星发射到同步轨道上有哪两种方法
I want to ask you a questionhow can learn English very?
I Can't Help But Love You 歌词
Baby I can't help it You keep me Drowning in your love
run,forrest...I can't help it I love you...You don't know what love is...
卫星轨道问题在同一个卫星轨道上,最多可以放置多少颗卫星
根据下列化合物于单质的相互转化关系(如下图).请按要求写出适当的化学式.(1)若乙的溶液呈浅绿色,y是红色固体,则x是______,甲是_______.(2)在常温下若乙是气体,则x是___________.(3)若
打勾的这个题 化成三角表示式和指数表示式 复变函数
小小的爱用英文用几种说法
请详细叙述through和across的差别;并解释为什么是walk across the bridge而不是through;另外walk()the tunnel?
OMRON继电器侧面的参数是什么意思?OMRON继电器MY2J型号,前面印着“MY2J 24VDC”及接脚图,侧面印着一些标示和参数,如“IEC255 5A250VAC~”,“5A240VAC”,“5A28VDC”,“5A 240V~AC1”,“5A 28V-DC1”等,还有
继电器上的omron,MY2NJ,OC3分别代表什么意思
非谓语(分词)难题Being interested in the relationship of language and thought,whorf developed the idea that the structure of language determines the structure of habitual thought in a society与Interested in the relationship of language and t
非谓语 分词求解答1 Seriously injured,Allen was rushed to the hospital.2 The book being written in simple Englis ,I found it easy to read.第一句为啥不可以改成Injuring seriously?第二句为啥不可以改成The book written in simple
复数的复指数怎样算
T can't help it.
155/3除以5/3+287/4除以7/4+459/5除以9/5怎样简算
I can't help eating
A,B是抛物线y²=8x上的两点,且此抛物线的焦点在线段AB上已知A,B两点的横坐标之和为10,则AB的长度为多少可设A(2a²,4a),B(2b²,4b)由题设,可得2a²+2b²=10能帮我解释下这两个点的坐标
A,B是抛物线y²=8x上的两点,且此抛物线的焦点在线段AB上,已知A,B两点的横坐标之和为10,则AB的长度为多少
已知A,B是抛物线y2=8x上两点,且此抛物线的焦点在线段AB上,若A,B两点的横坐标之和为10,则|AB|是多少
有be动词和动词过去分词(就是被动语态中)的句子哪个是谓语?
动名词短语做主语,谓语能直接用be动词吗?Choosing appropriate reading materials can be difficult for learners and teachers.这里的can be 能直接换成is吗?如果可以用be动词代替can be 那这两者的区别是什么?
理论力学,点的合成运动作业题
be动词可以做谓语吗.
有些事我们永远身不由己 但我愿意保持沉默
遇到有些事很急是怎么回事呢?我遇到事情很着急,没法沉着,静下心来,怎么办呢?
已知集合M=﹛y︳y=x²+1,x∈R﹜,N=﹛x︳y=√(3-x²)﹜,则M∩N=
144减12等于多少?
newcomers walked round and round.They didn't know _______The newcomers walked round and round.They didn't know _______ ( )A.where they will go B.they will go whereC.where will go D.where to go
144减169分之3600等于谁的平方