在平行四边形ABCD中,AB=4,AD=2，∠BAD=60°

物理学的发展大致可划分为三个重要阶段,请你做个简要介绍 Improve your English.you must do the following things.这句中improve为什么不加ing?不加TO？要省略呢？ 我的名字中有个磊,请大家帮取个英文名,谢啦,我是女的我的全名叫李苏磊 要月考了,英语不会做,求蒙题方法! fortissimo -the ultimate crisis-是哪里的歌是某科学的超电磁炮里的吗 fortissimo - the ultimate cris这首由fripside演唱的是出自某科学的超电磁炮的吗?如果是,是出自哪一集? -the ultimate crisis-fripSide无水印版膜拜团子! 英语得分题,想要你就来.Can i help you with the bag?我可以帮助你拎包吗?///////with 在这里如何翻译. 英语同义句 my shirt is all wet 等于 it is wet ------ my shirt what is the mater with you? what is the mater什么意思 what is the mater What’s the mater? what is the bending of wave as it enters a new mater ial called?A.reflection B.diffraction C.refraction D.interference2.which of the following best describes image formation by a plane mirror?A.A real image is formed in front of the mirror B.A real i 写出下列各词的第三人称单数形式.1、go▁▁▁▁ 2、do▁▁▁▁▁ 3、work▁▁▁▁▁▁ 4、write▁▁▁▁▁▁▁5、have▁▁▁▁▁▁ 6、like▁▁▁▁▁ 7、study▁▁▁▁▁▁8、sit▁▁▁▁▁▁9 safe easy cheap boring popular tiring good反义词 读一读,写出下列词语的第三人称单数形式. 我现在高二了,英语怎么才能快速提高,我的英语很差,几乎是全蒙的,150分的题才20分,教教我独特的方法多背单词,然后做什么,方法要独特点.我是读mba主要是在口语上有问题,怎么说英语!教教 American可以 解释为美语吗? This isn't my shirt.It's_________(you) 7.The manager came up to see __________.A.what was the matter B.what the matter was C.what the matter is D.what's the matter The manager came up to see______.A.what was the matter B.what the matter wasC.what the matter is D.what is the matter说明每一个的错误 it's not my...和 it isn’t my. The manager came up to see ______.A．what was the matter B．what the matter was C．what the matter is D．what’s the matter this is not my ... 和 it isn‘t my ... 有什么区别么? 用所给单词的适当形式填空 How_____you____(spell) it? not until与it not until that 之间有何区别,后面的动词有什么要求? until与while的区别分别与延续性动词还是短暂性动词连用 现在哪个语音聊天室人多? it ,s mr black ,s shirt 改为同义 句 “until”后面一定要接延续性动词吗 How （） you （）（spell） it 用所给词的适当形式填空,填在括号里How （） you （）（spell） it ? 用所给词的适当形式填空,填在括号里 必采纳!