三角形的特殊符号

market是什么意思 Could you give me ( ) on how to improve my English?A some advices B any advices C a iece of advice D an advice 分析下列情境中的研究对象那些能够看作质点.那啊些不能看作质点1 研究跳水运动员在空中做的转体运动2 研究运行中的人造地球卫星的轨道3 研究运动中的自行车车轮的转动快慢4 研究乒乓 I want make friends with someone who comes from all over the world我想和来自世界各地的人做朋友,这个定语从句正确与否? above,on在用法上有什么区分 单词：详细说下above和on 的各自的词性 和区别 以及用法 we shuold eat the foods that ——【make】us healthy还要说明为什么【求好心人赐教啊,】 首字母填空：People from the t-------- were buying them.快!现在就要答案! Was he there翻译成中文是什么意思 英语翻译he asked his son who was sitting there这句话的翻译到底是＂他问儿子是谁坐在那＂还是＂他问坐在那的儿子＂ make me a My mother is doing the cooking now.(用often替代now改写句子)My mother often _______ the _______. 是双链CDNA吗? Let is plays football错在哪 哪里有合成cDNA第二链的试剂盒现已用宝生物公司的TaKaRa RNA PCR Kit (AMV) Ver.3.0 试剂盒将总RNA反转录，合成了CDNA的第一链，哪个试剂公司有合成CDNA第二链的试剂盒，或者直接用总RNA（不需分离m He was sitting there,_____in deep thought.A.lost B.being lost 为何选B 英语非谓语题：He was sitting there ,______in deep thought A.lose B.lost C.loss D.losing答案是B.但是为什么不能选D用losing表示伴随状态呢?伴随状态和过去分词表被动有什么区别呢?伴随状态是分词短语的被 deep in thought 和 in deep thought有这么一个句子：He kept silent the whole night ,in deep thought . More than a hundred years----people in China had the first English textbooks.A.ago B.before C.after D.later 什么是cDNA cDNA是什么意思 he was sitting there lost ___tought(填介词） -Kitty,I have to go home to tell my mother this first and then we can go.-OK,______.look for write to see you later pay for have a birthday party make a wish wait for one's turn chat with stay out here come...上面的句子用所给的什么词填 there are some librariesfor students inthe city(改为一般疑问句)Nick has some comic books in his locker(对划线部分提问)There are some pears in Linda's schoolbag（该为否定句）Nickhas a basketball(改为一般疑问句) Some teddy b 写出“Bill goes to bed at 10:00pm.”的问句. above all和all 有什么区别和联系? everybody in our class thinks he is easy什么 my father goes to bed at eleven.改为一般疑问句 and together sister play brother怎么排列典中点里面的题 英语翻译Google翻译为,以上所有 雅虎翻译为,高于一切 怎么相差这么远? The cities near the 什么 is wetter than the cities in the west in China. above all,additionally是什么意思