热对流

生活像是什么意思 i haven't heard any songs by her in a while .该怎么理解貌似 in a while 紫外线是长波吗?长波能量高吗 不懂耶 什么是长波台,有什么作用 “长波台”是什么? 长波和短波那个穿透力强? 根据烟气中硫的含量,又怎么决定什么样的塔和脱硫方式那? my idea of my my idea of shopping online 内容提示:what do you thinmy idea of shopping online 内容提示:what do you think what can you buy good and bad about shopping online I 'm going to buy a blouse for my mother____i can think of a better idea for a present.这个空应选择哪个呢?A.until B.though C.if D.unless Going out of my fuckin mind Going out of my fuckin mind ...特别是fuckin mind. hope to do?doing?do? hope to do与hope doinghope to do和hope doing 有什么区别?何时用hope to do,何时用hope doing. thanks,you are welcome what are you doing now? 设F(X)是定义在[1,+∞ )上的一个函数,且有F(X)=2F（1/X）√X-1,求F(X) Do you have any problem /problems?Is there any problem /problems用单数还是复数?讲解下. 怎么回答any problem 台风是怎样形成台风眼,漩涡风雨区和外围大风区的?有人能回答下吗 现在时间是15点30分,我们(瑞安市区)的风力减弱了,是不是台风眼还是带风走了? 为什么台风眼没风 台风警报中常说台风中心附近最大风力指的是台风眼对吗 给我找一篇以Going online 为题目的英语作文 120词左右 知道的谢谢哈 急用 请以“shoping online”为题写一篇英语短文急 急 急 急就这些分都给你们了 Over _______ ,dead.A.rolling the goat B.rolled the goat C.did the goA.rolling the goat B.rolled the goat C.did the goat roll D.the goat rolled the goat lay on the ground,dead.dead也是主语补足语吗 以going for a picnic为题写一篇英语作文50词 trippety-trip went little billy goat over the rickety bridge为什么不是little billy goat went是trippety-trip wenttrippety-trip是什么? 如何使发夹不生锈? 发卡器发卡失败原因? 工作平台生锈该怎么办设备的工作平台生锈应该怎么办呢?应该怎样保养才能防止生锈呢? Disturbed的歌?帮我找下Disturbed摇滚、金属风的歌.要够绝的.thanks.最好附上一两句点评.不是专辑. disturbed是什么?