学习探究诊断四年级

电磁铁为什么不会短路电磁铁就像是把电源的两极直接连接起来,为什么不会发生短路呢 电磁铁短路时磁力大还是不短路磁力大 电磁铁不短路吗? 电磁铁为啥不短路 到了晚上,天空中 繁星点点,能看到什么,什么,什么星 He never ____ any land .Nor did he poss a house of his own.a owned b mastered c help d grasped 1.he usually does his housework at night.改为否定句 求翻译:He committed his first theft at his own house. 1.thank you for helping me 2.thank you for____ ___ Thank you for helping me .Thank you for _ _.（改同意句每空一词） Thank you for( )me a card.(make) 用括号里词的正确形式填空 下列装置中没有用到电磁铁的是：A 电热水器 B全自动洗衣机二楼的,且要有理由, 将：夜晚、遥望天空、繁星点点连接成比较有诗意的句子. 夜晚我仰望苍穹残月如钩繁星点点.续写 SORRY 要300字的作文 苍穹之下是一部什么样的电视剧苍穹之下是一部美剧还是英剧 头两天我看央视一档电视节目谈论过这部电视剧 我没怎么听清楚 在这之前我看过两眼 也没怎么往下看 能说具体说一下这是一 2012.3.15晚上天空会出现、发生什么?刚刚从电视上看了一眼,谁知道啊? 如何制作从太空到某个城市的视频?就是那种从太空俯瞰,然后推到地球上的某个城市,许多电影中很常见的! 1,he helped his mother do some housework as soon as he ____his home.2.Today,many famous ____the city to get to school. Jack began to do his homework as soon as he ______home. 1.（ ）her home,marry helps her mother do some houseworka As she returns b On arriving c After she gets d Directly she reaches 答案是D为什么啊 为什么不能选B on doing 也是一..就 可以把逗号前的部分当做一个状语啊 选D play down the prospects...该怎么翻译? ktopec这几个字母能组成什么英语单词?求, "日常生活"这个英语单词怎么读?急! harding from the rian and snow trying to for get but i won let 急 他深邃的眼睛仿佛能把人吸进去怎么英语翻译好? rain and 钕铁硼磁铁和电磁铁哪个磁性更高钕铁硼磁铁是目前磁性最高的磁铁 ,那他和电磁铁相比呢 ,同样的面积下 好听的德语女名我叫程婷婷 高一学德语跪求好听女名! 谢谢 求好听的德语名字~适合二十岁左右女生用的! 怎样自己复习预习功课 帮我做一道题Before we finished the exercises,he told us to___.A.put away B.push away C.get away D.go away Push It Away 歌词