蝌蚪用________呼吸，青蛙用________呼吸。-八年级生物

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• 两栖动物的幼体一般都生活在______中，成体营________生活。-八年级生物
• ________ the delayed flight will take off depends much on the weather.A．WhyB．WhenC．ThatD．What-英语
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• 两栖类的代表动物青蛙，其生殖和发育过程包括如下几个阶段：①蛙的卵块；②雌雄蛙抱对；③蝌蚪；④成蛙；⑤雄蛙鸣叫。请指出正确的排列顺序。[]A．⑤④②①③B．②⑤①③④C．⑤②①③④D．②①⑤③④-七年级
• 下列对两栖动物的描述，错误的是[]A．既能生活在水中，又能生活在陆地上的动物是两栖动物B．两栖动物变态发育，幼体为蝌蚪，成体具有四肢C．两栖动物幼体生活在水中，成体一般在-八年级生物
• 青蛙的生殖发育特点是[]A．雌雄同体、体内受精、体内发育B．雌雄同体、体外受精、体外发育C．雌雄异体、体内受精、体内发育D．雌雄异体、体外受精、体外发育-八年级生物
• “黄梅时节家家雨，青草池塘处处蛙。”春末夏处，青蛙“呱、呱、呱”的叫声此起彼伏。如果寻声找去，你会发现池塘中的青蛙正在抱对。不久，如果你再来，会在水中看到小蝌蚪。如果-八年级生物
• 青蛙的变态发育大约经历多少天[]A．30多天B．40多天C．50多天D．60多天-八年级生物
• Please send us all the information _________ you have about the candidate for the position.A．thatB．w
• Half an hour later, Lucy still couldn’t get a taxi _______ the bus had dropped her. A．untilB．whenC．a
• The professor had no sooner finished his speech ________ the students started cheering.A．sinceB．whe
• -What are you going to do this afternoon?-I'll probably go for a walk later on＿＿＿it stays fine．
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• 青蛙的生殖方式是[]A．卵生、体内受精B．卵生、体外受精C．胎生、体外受精D．胎生、体内受精-八年级生物
• 每年春末夏初，池塘边传来阵阵蛙鸣，这是雄蛙在[]A．唱歌B．求偶C．捕食D．呼吸-八年级生物
• Cathy had quit her job when her son was born _______ she could stay home and raise her family.A．now
• “Every time you eat a sweet, drink green tea.” This is _____ my mother used to tell me.A．whatB．howC．
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• our manage objects to Tom’s joining the club, we shall accept him as a member. A．UntilB．UnlessC．IfD．
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• I toured the Great Wall，I was deeply impressed with the beautiful scenery．A．For the first timeB．At
• It’s uncertain ____ the fashion show will be held next week.A．whatB．whyC．whetherD．that-高一英语
• ________ parents say and do has a lifelong effect on their children.A．ThatB．WhichC．WhatD．As-英语
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• _______ you start eating in a healthier way, weight control will become much easier.A．UnlessB．Althou
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• —The patient looks much better. ________ is it that has made him ________ he is today?—I think it is
• ---Could you please give the dictionary to Wang Feng?---Yes, of course! I’ll give it to him _______
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• ________ I really don't like art, I find his work impressive.-高三英语
• It is none of your business ________ other people think about you.Believe yourself.A．howB．whatC．whic
• You can only be sure of ________ you have at present; you cannot be sure of something ________ you m
• ____________ your father saw you, what would he say?A. IfB. Suppose C. Unless-英语
• I'm happy ________________ you are happy.A. if B. unless C. as long as-英语
• _________ I am, I will be thinking of you.A. Where B. Wherever C. Who-英语
• I'll be out for some time. ______ anything important happens, call me up immediately.A．In case
• __________ your argument, I shall hold to my decision.A．WhateverB．WheneverC．WhicheverD．Wherever-高二英语
• Could I speak to ________ is in charge of International Sales，please? A．anyoneB．someoneC．whoeverD．n
• —May I go now?—__________ you've finished your work, you may go. A．AfterB．AlthoughC．Now thatD．A
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