台湾面积多少平方公里

用浓硫酸分离三氯甲烷 和乙醇时,浓硫酸与三氯甲烷的比例是多少?急用 谢谢!快呀 没人知道吗 急用啊 翻译We do what we must because we canWe do what we must because we can什么意思 but I'm afraid we can't because we've run out of bread怎么翻译 When the moon emerged from behind the clouds I made out a figure moving in the distance.求翻译 英语翻译客服部运营部驾驶员休息区 小丑鱼的生活习性 如图：正方形ABCD中,对角线AC.BD相交于点O,DE=CF,试说明OE=OF.OE垂直OF 六一班同学的近视率已达14%, 如图,点O是直线CD上一点,AO⊥OB,∠AOD=2∠BOC,求∠BOC的度数 如图,点o是直线CD上一点,AO 垂直OB,角AOD=8BOC ,求角BOC的度数. which festival is in May?怎么回答How do you celebrate your favouriite festival?怎么回答 The Dragon Boat Festival is (in May or June.)括号部分提问 如图,在正方形ABCD中,O为对角线AC和BD的交点,E为CO上一点,连接BE,F为∠OBE角平分线上一点,连接OF、AF,G为BE上一点且BO=BG.（1）若FG⊥OF,OF=1,求线段OG的长度；（2）若∠AFB＝90°,求证：AF＝BF+OG Su Ning remembers things quickly的同意句什么啊 写出百分数 百发百中() 事半功倍() 大海捞针() The lift do not go to the top floor.这个DO表示加强语气吗? We must use the lift to reach the top floor.一般疑问句___we ___the lift to reach the top floor? 上外英语语言文学口译方向和笔译方向哪个好考 carve soap figures “I need to pack up my things in the suitcase very quicky,”the girl said.改成间宾并指出主谓宾. decided on与decided to有什么区别 I need to pack up my things in the suitcase very quickly这句话的句子成分标出主语 谓语 宾语 状语 英语翻译二句:1:释放所有翅膀上的能量 2:释放所有能量在翅膀上 Soneone offers you a glass of wine .What do you refuse offer? decide的动词ing 判断：—个比的前项乘1/4,后项除以4,比值不变（） decide怎么用,加to还是-ing? [英语]decide on能加ing形式的动词吗? 历史上东.西晋是怎么灭亡的.之后又是哪个朝代. Don't forget the book that I told you to bring开头用Don't 有忽略什么单词么? 在正方体abcd-a1b1c1d1,e是a1c1的中点,那直线ce垂直哪个直线?A.ac在正方体abcd-a1b1c1d1,e是a1c1的中点,那直线ce垂直哪个直线?A.ac.B.bd.C.a1d.D.a1d1 We have decided not to go,though it was a difficult _(decide)