细嚼馒头有甜味的原因是（）A．部分淀粉在唾液淀粉酶的作用下转变成麦芽糖B．淀粉有甜味C．淀粉在唾液淀粉酶的作用下转变成葡萄糖D．牙齿咀嚼和舌搅拌的作用-生物

更多内容推荐

• Where did they suggest _____during the summer holidays? [ ]A. shall we go B. should we goC. we shoul
• 如图是根尖的结构图，请据图回答下列问题：（1）填写根尖各部分的名称：A______；B_______；C______；D_____。（2）如果去掉________，根不能再生长。（3）根生长最快的部位
• Class regulations require ____ is the last to leave the Classroom ____ off all the lights. [ ]A. who
• The villagers have already known ________ we’ll do is to rebuild the bridge．[ ]A．thisB．thatC．whatD．w
• No one can be sure _____ in a million years. [ ]A. what man will look likeB. what will man look like
• My uncle asked me _____ for my holiday, Hainan or Dalian. [ ]A. where I would choose B. which place
• We agreed to accept ___________ they thought was the best engineer.[ ]A. whatever B. whomever C. whi
• The fishing village where they went on a journey lies in _____ is now part of Hainan province.[ ]A.
• She is very dear to us. We have been prepared to do _____it takes to save her life. [ ]A. whichever
• I was wondering ________ that you took up smoking. [ ]A. it when was B. when it was C. it was when D
• As soon as he comes back, I'll tell him when ______ and see him. [ ] A. you will come B. will y
• （a）请你在平面上画出6条直线（没有三条共点），使得它们中的每条直线都恰与另三条直线相交，并简单说明画法．（b）能否在平面上画出7条直线（任意三条都不共点），使得它们中的每条-数学
• 随着根的不断生长，根尖的各个部分逐渐消失。[]-七年级生物
• 某校生物兴趣小组的同学们在探究植物根尖何处生长最快的过程中，将实验结果绘图（如图），请你推断生长最快的部位是[]A．根冠B．分生区C．伸长区D．成熟区-七年级生物
• I persuaded my parents _____ we should go to Italy for a holiday rather than Scotland. [ ]A. what B.
• 如图是某同学在探究根的什么部位生长最快时，第一天绘制的根尖各段长度图，请你预测哪一段生长最快？（）A．1（成熟区）B．2（伸长区）C．3（生长点）D．4（根冠）-生物
• Can you tell me ____ in a million years. [ ]A. how man will look like B. what man will look likeC. m
• They wonder _____ someone who wants to be a telecom engineer should study subjects such ashistory, l
• Now that we have settled the question of feasibility(可行性), let's proceed to the next one ─_____
• We have been informed that he had done_____ visits were essential by eleven o'clock last night.
• When changing lanes, a driver should use his turning signal to let other drivers know _____.[ ]A. he
• 如图，线段AB=BC=CD=DE=五厘米，那么图中所有线段的长度之和等于______厘米．-数学
• The director couldn't figure out _______ made his assistant spend so much time in doing the sur
• 下表是某生物小组在探究“根的什么部位生长最快？”的实验中记录的数据，从表中四组数据可以判断出哪一组是伸长区的生长数据？[]A．AB．BC．CD．D-七年级生物
• — Your mum is very kind. — Yeah, My mum is pretty considerate, you know what _____, she always arran
• Do ______ right and respect the opinions of others.[ ]A. what you believe isB. that you believe isC.
• 下图分别是才都得花、种子、幼苗示意图，请据图回答：（1）在由菜豆花形成果实时，必须进过的两个生理过程是______和______．经过上述过程，菜豆花的[______]______发育成菜豆种-生物
• The teacher asked me _____. [ ]A. that I had finished my homework B. that had I finished my homework
• I wonder _____ we can solve this hard problem. [ ]A. what else B. how else C. that D. as if -高一英语
• Do you think body positions are part of _____ "body language"? [ ]A. which is called B. wh
• Ifthefigure6iscomposedof24equilateraltriangles，thenhowmanynon-congruentdistinctrighttriangleswithver
• 将编号从1到10的10个白球排成一行，现按照如下要求涂色：（1）涂色的球有2个；（2）被涂色的2个球的编号之差大于2．那么不同的涂色方法有几种？-数学
• 如果在根尖的不同部位做标记，一段时间后发现生长最快的部位是_____。-七年级生物
• 如图是某同学在探究根的什么部位生长最快时，第一天绘制的根尖各段长度图，请你预测哪一段生长最快[]A．1（成熟区）B．2（伸长区）C．3（生长点）D．4（根冠）-七年级生物
• They want to know _______ do to help us. [ ]A. what they can B. what can they C. how they can D. how
• 根据探究“根的什么部位生长最快”的实验回答下列问题（1）实验中选择的根应是______幼根．（2）选一条幼根放在______上，用钢笔轻轻地自幼根尖端向上画4条线，这4条线的间距应____-生物
• 在探究“根的什么部位生长最快”的实验中，几位同学测得数据不同，怎样处理这些不同的数据呢？（）A．取最大值B．取平均值C．取中间值D．取最小值-生物
• 以下是某小组同学在探究“馒头在口腔中的变化”时设计的实验，请分析并回答：实验设计如下：1号试管：馒头屑加2毫升唾液，充分搅拌，37℃水浴10分钟2号试管：馒头屑加2毫升清水，充-生物
• After five hours' drive, they reached _____ they thought was the best place they they'd be
• Before the sales start,I make a list of ________ my kids will need for the coming season．[ ]A．whyB．w
• I don't know _____ you deal with, so I can't help you. [ ]A. what B. how C. if D. because
• 小张上学路线如图，只准往东或往北走，且不许触及池塘，图中阴影部分，则共有（）条不同的路径．A．18B．19C．20D．21-数学
• 在某次聚会上，共有10对夫妇参加．若每位男士除自己配偶外都必须和其他人握手，而女士与女士则不用握手，则这次聚会中，客人共握手______次．-数学
• 探究“根的什么部位生长最快”时，选用的材料应该是[]A．生长迅速的幼根B．生长健壮的白色的根C．生长缓慢的黄色根D．生长缓慢的老根-七年级生物
• 如图，可以数出（）个三角形．A．10B．20C．30D．40-数学
• 如图，有20枚铁钉钉成十字图案，任选4枚铁钉用橡皮圈绷紧，使成为正方形．这样一共可以绷成______个不同的正方形．-数学
• 如图表示菜豆种子的萌发情况，在其根尖上每隔1㎜用防水墨汁标记，以下哪一项最能恰当地表示3天后的根被墨汁标记的情况（）A．B．C．D．-生物
• 根生长最快的部位是分生区。[]-七年级生物
• 在探究根生长最快的实验中，你发现根生长最快的应是根尖的________部位[]A．伸长区B．根冠C．分生区D．成熟区-七年级生物
• 若把萌发出幼根的小麦种子分成数量相等的A、B两组，将A组的幼根的根尖保留，B组小麦幼根的根尖切去，然后放在同等条件下培养。请你预测一下，几天后，A、B两组小麦幼根的生长-七年级生物