你的朋友mary来中国了

Since then over 400 million people have visited Beijing 改成同义句 Since then over 400 million pepole have visited beijing同义句 kclo3+6Hcl=kcl+3cl2+H2o指出氧化剂,还原剂和质量比氧化产物,还原产物和个数比.转移电子数目 能提升人体神经兴奋性的物质是什么 什么是交感兴奋性神经增强? london was the biggest city in the world in ______ A 1798 B 1891 C 1980 D 2000 The last man ____ the sinking ship was the capitain.A>left B>to leave请问选哪个? The last person ---- the sinking ship was the captain.A left B leave C to leave D to be leaving 19.the last man ______the sinking ship was the caption.A)leftB)to be leavingC)to leaveD)having left请问答案为什么选C呢, The captain ordered his men_____the ship.A. leave B. left C. leaving D. to leave谢谢,请说明理由 I like my teacher ,who is good at cooking 这里可不可以改为I like my teacher who is good atcooking吖 定语从句 宾语从句 是不是在句子中充当定语和宾语吖 那换一种说法 定语从句 宾语从句 充当主句的 定语 神经毒素勇闯夺命岛几年前看的电影,勇闯夺命岛中主人公在玩成任务后被f18炸飞的电影,主人公在vx毒素泄漏后在自己心脏上打了针,那针叫什么 None of his painting is good,___,___?反意疑问句 急 he has five children,and___of them os good at paintingAeveryone Beverybody Cevery one Devery为什么要选c,能仔细的说下区别吗 1.葡萄架,苹果园,李苦对瓜甜.2.风习习,雨绵绵,地北对天南. 旅美华侨托物寄乡愁（上联）求（下联） ) 1.Tokyo is one of _______ in the world.A.the biggest city B.the most biggest city C.the bigg 箭毒样神经毒素 互感器二次回路绝缘电阻一般为多少m 目前下列工艺过程没有直接使用离子交换技术的是A硬水的软化B电解饱和食盐水制备氢氧化钠C电渗析淡化海水D海水中提取金属MG 如何分析工艺过程的组成 工艺过程卡片与工序卡片的区别是什么?各自的作用是什么/那个应该在前? It is well-known that the _____ of air can make a man die.A.presenceB.absenceC.shortD.poverty要详细的解答谢谢 45钢的正火工艺过程是什么?加热温度,保温时间和冷却方式 vx神经毒素怎么配 VX神经毒素如何制造? 去污粉+洗洁精真能生成VX神经毒素吗?如果真是,那不是大小餐厅洗碗间都死人了. 去污粉和洗洁精能不能生成VX神经毒素 Are you good at drawing or painting翻译 painting和drawing 的区别如题. 不同厚度,不同掺杂类型的相同半导体材料的光吸收系数相同吗? 离子导入和药物导入有什么区别呢?