中程战场雷达探测范围

the island country had fought against the invaders for morethan 10 years ___it became independent republic选when还是before 连词成句are,back,very,to,come,to,school,glad,students. 复合句中that.what.where.which怎样区分 I was confused by the loneliness.这句话需不需要加上 the,如果需要,那是什么原因. 一个月的时间里如何提高自己的英语水平?我在准备过四级. 老师您好,我现在英语水平也就50分,这个时候怎么提分啊!着急. 我现在英语水平很低,本人较着急,想在两个月的时间有一个突破!不知在哪能学好?我本人一定是很努力的! Devon is a man of ___(心情). since 和 for①I’ve been running （half an hour ago/for half an hour）②Sam has been skating(since 9 o'clock/an hour ago)③-When did you get the first stamp?-(For six years/Six years ago) It sounded more polite中的sound加ed表什么?求详解, 什么时间段背课文最好? She arrived in London with all the native innocence of a small-town girl. 怎么背课文效果最佳! 背英语课文什么时候才能看到效果? compression是什么意思 In rock climbing,no amount of skill will make up for a lack of caution.no amount of skill will make up for a lack of caution.我特不理解, 如何给计时器加装开关我买了一个计时器,很喜欢,不足之处就是电源没有开关控制,计时完成后,要等到10分钟后才能自动关机,很费电（两节7号电池）,我想装一个开关来控制开关机,不知如何下 家庭线路问题,打开开关后,白炽灯一分多钟才亮,是接触不好吗,还是开关不好. His Lack of money was the result of caprice in spending on unnecessary things. 请问I'm in lack of money,有没有这样说的 the Greens' life was e___by lack of money答案写的是embarrassed,为什么不是embarrassing? population与people有什么区别 “医学伦理学能帮助我们吗” But I don\'\'t know why you Ann used to (be outgoing and energeric).(提问) He doesn't like English at all,so he s( ) speaks English in class.首字母填空 医学伦理学判断题和填空题判断题 31.伦理学是研究有关道德和伦理问题的学科 (分值：1分)　正确　错误 32.1985年,中国中华医学会分社了全国医学伦理学委员会 . (分值：1分)　正确　错误 33. YuanHaoNan (yuan big head) I don't know why yao,always have a love of you feel faint,even if you don't think so,I do not know what what you like,but I always thought of myself like you all,since XuPeiYao don't like you,you are very sad,then you can n Don't know why suddenly feel good mood heavy good heavy是什么意思 The output value is the control input y(k) of the object. Open the door of wisdom,and explore the source of all things中文是什么意思 已知sin2a=1/3,兀/4＜a＜兀/2,求证sin4a,cos4a,tan4a的值