微米符号怎么写

1.you don't look very happy 2.How canwe contact with you?3.what’ s up 英语句子转换 静止在光滑水平面上的物体质量为25kg,在与水平方向成60°=角斜向上得力作用下运动10s,已知F=10N,求在这...静止在光滑水平面上的物体质量为25kg,在与水平方向成60°=角斜向上得力作用下运动10s, 下面成语构成方式完全相同的一项是A：返璞归真 颠倒黑白 横冲直撞 藏污纳垢B：聚精会神 歌功颂德 得陇望蜀 提纲挈领C：津津有味 面面俱到 咄咄怪事 洋洋得意D：超尘拔俗 登峰造极 遍体 I am a teacher.（改为一般疑问句） 用and和some造句 用any和or造句 打比方形式构成的成语?如“挥汗如雨” 把下面关于恐龙的问题补充完整.1.Dinosaur K had()legs and walked() Dinosaur K had___leg and walked? 求下面填空题:1.Which dinosaur had two legs?_did.They ate_. 娃娃鱼怎么很少看到啦,怎么会叫他娃娃鱼啊? 什么是电梯的组数和部数? 电梯台阶数问题一电梯正在运行,小明从下走到顶部共走了27个台阶,小红共走了18个台阶,小明的速度是小红的2倍,求电梯静止时从底部到顶部的电梯数? Without telling anyone,even her sister,Mary went to the park to meet her friends.这是改错题.答案在even前加not .为什么?从语法角度讲,属于哪方面的错误呢? Look,Mary_______(play)her friends. hello,says,Mary,friends,to,her连词成句 Mary,what ,play,is ,to ,music ,going 连词成句 商场中庭的观光电梯算面积么能说清楚点吗 another后加单数还是复数?有没有another students do you like hamburgers (作出否定回答） Do you like English?做肯定回答和否定回答 lily likes what her twin sister like/does 应用 like 还是does Sun likes singing.what____Lily?A.with B.does C.about 水能增加摩擦力还是减少.在怎样的情况下? 当m为何值时,方程组5x+y=12,x-my=9的解x,y互为相反数. 当m为何值时,方程组{5X+Y=12和X减MY=9}的解X,Y互为相反数 当m为何值时,方程组5x+y=12,x-my=9的解x,y互为相反数? 1.doesn't, play, sister, but, his, sports(.)怎么连词成句 But Steven doesn't love to do sports.He likes_____ Tom likes to play( )volleyball and he is on ( )school team. Athe,the B/,/ C/,the选什么啊? she likes[ ]【play】football.用所给的动词填空 用适当形式填空：1.Jim,__(come) and play football wiht me.2.____(there be) any lemonade in the bottle. 在平行四边形ABCD中,对角线AC⊥BD,且AC=8,BD=6,求此平行四边形的周长和面积.