音标前面的点表示什么

一道弱智数学题设三次根号3=a,根号2=b,用a、b的代数式表示72的立方根 一道很弱智的数学题900小时多少个月? Hardly had they arrived at the airport ___the plane started to leave.A．thanB．thenC．untilD．when选哪个,为什么呢?参考答案是选C，我觉得选D的朋友说的也很有道理的。那到底是他们赶上了飞机没有啊? ___they arrived early at the sport,they never missed the flight.A If B becau they arrived at the airport at 4:00 pm.(改为同义句） they _ _ the airport at 4:00 om . ( )1、They had no sooner arrived at the airport( )1、They had no sooner arrived at the airport _____the plane started to leave.A.than B.hardly C.hard D.when( )2.She had hardly gone to bed _____ she finished her homework.A.no sooner B.hardly C.hard 你在哪?用英语咋说? 以J开头的最好的女生英文名我叫曾俊. 我想问大家一个很弱智的数学题.-_-!0是不能当除数还是不能当被除数吖,是不是0可以除以任何非0的数吖什么是除数和被除数 弱智数学题.y=x²+(m-2)x-2m当m=（）时,函数图像顶点在x轴上,何时在y轴 何时图像经过原点 They arrived at the airport later in the afternoon(改为同义句) 英语“你在哪”怎么说 英语翻译kao ghet may han m dugkiem.t lam j 印度本土语言是什么?越南本土语言是什么? 阿姨 你刚刚说什么?翻译成越南语言 人生的价值指什麽?对於世界对於生命来说追求天地人的平衡及自我的实现，而这种自我的实现要怎样体会呢？ 人生的试金石 指的是什么 He went to the airport to wait for the__to America(fly)用括号里词的适当形式填空. 我英语不好,请多多谅解·～～会的人请帮帮忙～ I went to see my grandparents last saturday变一般疑问句 三个英文单词的区别jailprisonpenitentiaryAny difference?i often hear people say these three alternatively.but i really wanna know the distinction among them.i want somebody's help! 作文我的小伙伴,350字 我的小伙伴作文350字 英译 would you like a hand with the bag would you like a hand the carry the bag急 Would you like a hand to find photos 改为同义句 --------me---------you to find the photosWould you like a hand to find photos改为同义句--------me---------you to find the photos Would you like to give me a hand?怎的么回答要C开头的 Would you like a hand to clean the house同义句English c_______ is a very good place to practise spoken English 有没有懂越南话的朋友越南话nho ngiu ha 翻译I have a great willing to win you 翻译：Diogenes ,I have heard a great deal about you . in the future,you good you have a sense of it you have your own valuse? 翻译句子：1、And so are you!2、You have a great memory.3、Wow,you have changed! 上周六晚上用英语怎么说