某同学剧烈运动后感到肌肉酸痛，主要原因是肌细胞产生并大量积累了[]A．醋酸B．酒精C．乳酸D．碳酸-高一生物

更多内容推荐

• A person, like a commodity, needs packaging. But going too far is absolutely undesirable. A little e
• Three boys and three girls boarded the bus to Fort Lauderdale, dreaming of golden beaches as the gra
• 用重铬酸钾检验发酵液中是否有酒精生成，正确的操作为[]A．先在试管中加入发酵液2mL，再滴加3滴重铬酸钾溶液B．直接将2mL重铬酸钾倒入发酵液中C．先在试管中加入发酵液2mL，再加-高二生物
• When I was in my second year of senior high school, a girl called Jeanie in my class made a big name
• A group of graduates got together to visit their old university professor.The conversation soon turn
• Car Talk When I got the driving license last summer, Mom and I took our first trip around an empty p
• 阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。Every fast-food employee knows that the drive-thr
• 甲酵母菌进行发酵，乙酵母菌进行有氧呼吸，若它们消耗等量的葡萄糖，则甲、乙酵母菌释放出的二氧化碳的体积比是[]A．3：1B．2：1C．1：3D．1：6-高一生物
• A shopkeeper sent his son to learn about the secret of happiness from the wisest man in the world. T
• My sister and I grew up in a little village in England. Our father was a struggling , but I always k
• It was the district sports meet. My foot still hadn’t healed(痊愈)from a(n)injury. I hadwhether or not
• One of the greatest sources of unhappiness，in my experience，is the difficulty we have in accepting t
• One of my fondest memories as a child is going by the river and sitting idly on the bank. There I wo
• Reading to dogs is an unusual way to help children improve their literacy skills. With their shining
• During my elementary school years, I used to compare my mom with my best friend Tiffany's mom.T
• 下图是某同学为了研究酵母菌的细胞呼吸所设计的一个实验装置。开始时锥形瓶中装满了质量分数为5%的蔗糖溶液，并在其中加入了适量的酵母菌，将装置密封并静置一段时间后记录下-高一生物
• It was already late when we set out for the next town, according to the map was about fifteen miles
• I was blind, but I was ashamed of it if it was known. I refused to use a white stick and hated askin
• I learned all about taking responsibility from my mother’s tough love. My mom had a wonderful way of
• The way people hold to the belief that a fun-filled, and pain-free life equals happiness actually re
• In your life，nothing happens by chance or by means of good or bad luck．Everything to test the limits
• One morning, teachers arrived to find the little country schoolhouse swallowed in flames. They dragg
• “Avoid the rush hour” must be the slogan of large cities all over the world. Wherever you look, ther
• Now you’re a fool for helping. “I don’t want to get involved” seems to have become a national motto.
• Once upon a time, a man punished his 5-year-old daughter for using up the family's only roll of
• 一密闭容器中加入葡萄糖溶液和酵母菌，1小时后测得该容器中O2减少24ml，CO2增加48ml，则在1小时内酒精发酵所消耗的葡萄糖量是有氧呼吸的[]A．1/3倍B．1/2倍C．3倍D．4倍-高二生物
• When I was 17，I read a quote that went something like：“If you live each day as if it were your last，
• A doctor entered the hospital in a hurry after being called in for an urgent ．He answered the call
• A letter of reply is sometimes a most treasured thing． Here is a story that tells about this common
• There was a little boy visiting his grandparents on their farm． And he was given a slingshot（S单弓） to
• The world is filled with smart，talented and gifted people．We meet them every day．A few days ago，my c
• 下图是探究酵母菌细胞呼吸方式的实验装置。以下说法中正确的是[]A．两个装置均需要在黑暗条件下同时进行B．在装置乙Ⅲ处取液体检测是否有酒精生成C．装置甲中NaOH的作用是吸收Ⅰ处-高三生物
• I was cleaning out an old box when an old card caught my eye: Queen City Casket Company. “What is it
• When you are little, it’s not hard to believe you can change the world. I remember my enthusiasm whe
• Recently I overheard a father and daughter in their last moments together at the airport. The airlin
• 为探究酵母菌的细胞呼吸，将酵母菌破碎并进行差速离心处理，得到细胞质基质和线粒体，与酵母菌分别装入A-F试管中，加入不同的物质，进行了如下实验(见下表)(1)会产生CO2和H2-高三生物
• How many of us can really ever thank our mothers for what they do for us? I am now 40 years old, so
• I have been in love with China since 2010. After one year in Zhejiang University, I got a great — to
• A high school history teacher once told us, “If you make one close friend in school, you will be mos
• 阅读下面短文，掌握其大意，然后从21~40各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。When I was a law professor, a student reporte
• 某同学利用下图中的装置进行酵母菌厌氧呼吸实验，步骤为：①取10%葡萄糖溶液30mL注入三角瓶中，置于35℃水浴中预热。②取干酵母3g，放入15mL、35℃的温水中化开后，倒入三角瓶中，-高二生物
• “Confidence” is probably one of the most noticeable traits（品质）in the Americans．They show confidence
• In a cab, a woman seemed in such a hurry．She constantly rushed the cab driver to drive quickly．She w
• I had a very special teacher in high school many years ago whose husband died suddenly of a heart at
• When I was young I wanted to be a model，so when a national contest was staged，I convinced my parents
• My brother and I were in Orlando Florida to witness our first Space Shuttle Launch. The Discovery wa
• 下列实验中，细胞处于生活状态的有①探究酵母菌细胞呼吸的方式②观察植物细胞的有丝分裂③恩吉尔曼用水绵观察光合作用的场所④观察DNA和RNA在细胞中的分布⑤用黑藻观察叶绿体的形-高一生物
• Recent studies show that only one out of three people have strong and healthy self-confidence. That
• More than a third of the babies born this year could receive a 100th birthday message from whoever h
• The other day when I was passing a clothing store, I fell in love with a skirt. I knew it would suit