The operation room in every hospital has to _______bacteria of any kind so that the patient being op

更多内容推荐

• He is not the kind of person that ______ in the comedy. In life, he is serious and conserved(保守).[ ]
• Stay awake!You should know that it________to sleep in class. [ ]A. doesn't permitB. is not perm
• ____________ many times, but he still couldn't understand it.[ ]A. Though he had been toldB. Ha
• It is reported that a woman as well as two children ______ from a big fire yesterday.[ ]A. was saved
• — Can I smoke here?— No, _____ at no time in the library.[ ]A. smoking permitsB. smoking does permit
• About one fourth of the families in the city have private cars and this number _____ to double in fi
• — Have you read today's report about your performance? — I don't care what _____ about me.
• The number of people in the world _____ about 6 billion and large quantities of waste _____ each yea
• —How was your trip to New York, Jennifer?—Fantastic! That was the first time I _______ to such a big
• -Do you know what speed _______ for a rocket to escape from the pull or gravity of the earth to send
• Stay awake!You should know that it________to sleep in class. [ ]A. doesn't permitB. is not perm
• Florence _______ each year by about a million tourists who came to see the art galleries,churches an
• 原核细胞与真核细胞的形态结构千差万别，但都有相似的基本结构，如细胞膜、细胞质和与遗传有关的核物质。这反映了细胞的[]A．差异性B．统一性C．多样性D．单一性-高一生物
• 真核生物、原核生物的遗传物质都是DNA。该事实说明生物具有[]A．统一性B．多样性C．适应性D．特异性-高三生物
• —Mum, can I go out and play basketball?—If your homework ______, you can go. [ ]A. will be done B. h
• Among all these flowers _____a kind of red rose, which was given by my friend. [ ]A. is included B.
• It _______ this morning that two of the body guards of the prime minister got killed and the ministe
• The water will be further polluted unless some measures _____. [ ]A. will be taken B. are taken C. w
• Cooperation or teamwork, the importance of which is often _____, plays an important part in football
• The temple _______ on the top of the mountain .[ ]A. is situatedB. situatesC. has situatedD. is situ
• He said that his car______stolen and he_______have to telephone the police.[ ]A. was; wouldB. has be
• Children won't put on weight easily if they _____to eat fruit and vegetables. [ ]A. persuade B.
• 下列关于细胞共性的描述正确的是[]A．所有细胞内都含有糖原B．细胞都能进行分裂和分化C．细胞都具有细胞质和细胞膜D．用龙胆紫溶液染色细胞，都能观察到深色的染色体-高三生物
• All communication has to be open, honest, and patient if a happy and healthy relationship _____.[ ]A
• The Chinese food ______ to be the healthiest in the world.[ ]A. considers B. is consideringC. is con
• 用link ,join, connect或其短语的适当形式填空1. The two towns are ____ by a canal.2.____ me ____ Peking University
• In the spoken English of some areas in theUS, the "r" sounds at the end of the words___.[
• He collected information on 1,000 people, whose IQ when they were ten years old. [ ]A. is testedB. h
• 关于细胞的多样性的举证不属实的是[]A．鸵鸟的卵细胞直径达15cm，是最大的细胞B．动物的神经细胞可伸出长达1m的神经纤维C．独立生活的支原体直径约100nmD．专营寄生生活的病毒需-高一生物
• We must apply what we have learned to our work because in no case _____from practice. [ ]A. should t
• 将以下句子改成被动语态。 1. She often waters the flowers every morning._________________________________________
• The number of deaths from heart disease will be reduced greatly if people ______to eat more fruit an
• Linda make sure the table____ beforethe guests arrive. A. be setB. set C. are setD. are setting-高三英语
• The two nurses _____ 100,000 yuan by the police but donated it to victims of the explosion. [ ]A. re
• The company going from bad to worse, the workers ____ hardly enough to make a living. [ ]A. are paid
• 细胞的统一性体现在①细胞都有相似的基本结构，如细胞膜、细胞质、细胞核②真核细胞细胞核内有染色体，原核细胞无染色体，但有拟核，其中都含有DNA③真核细胞多种多样，原核细胞-高二生物
• 下列关于细胞和细胞器的说法正确的是[]A．所有细胞都具有DNA，可说明细胞具有统一性B．念珠藻细胞经有丝分裂，细胞内的DNA数目不变C．细胞学说阐明了一切动物、植物、微生物是以-高三生物
• — Do you have any problems if you____ this job?— Well,I'm thinking about the salary... [ ]A. of
• An order has come that the police should find out where the thief ____.[ ]A. hides B. was hiding C.
• 下列各项中不属于细胞结构共性的是[]A．都具有遗传物质B．都具有膜结构C．都具有核糖体D．都具有细胞核-高一生物
• — The windows must have taken you quite a long time that day.— Right. They ____ for weeks. [ ]A. hav
• In this university a medal with ten thousand dollars ____ gains success in science and technology ev
• 下列说法正确的是[]A．萨克斯把绿叶的一半遮光，置于光下一段时间，证明了绿叶在光下产生淀粉需要CO2B．温特证明造成胚芽鞘弯曲的刺激是一种化学物质并确定其本质是吲哚乙酸C．-高一生物
• 在细胞的生命活动中起重要作用，而且含量约占细胞总量97%以上的化学元素是[]A．C、H、O、N、P、KB．C、H、O、N、P、SC．C、H、O、N、P、CaD．C、H、O、N、S、K-高二生物
• 在高等植物细胞中有两种大量元素，淀粉中不含有，但核酸中含有。关于这两种元素的相关叙述中，正确的一项是[]A．这两种元素是生物膜、染色体、胰岛素的主要组成元素B．在只缺乏-高二生物
• 下列有关组成生物体化学元素的论述，正确的是[]A．组成生物体和组成无机自然界的化学元素中，碳元素的含量最多B．人、动物与植物所含的化学元素的种类差异很大C．组成生物体的化-高三生物
• 生物大分子在生物体的生命活动中具有重要的作用。碳原子本身的化学性质，使它能够通过化学键连接成链或环，从而形成各种生物大分子。可以说地球上的生命是在碳元素的基础上建-高一生物
• 下表所列为玉米植株和人体内含量较多的元素的种类，以及各类元素的含量(占细胞干重的质量分数%)，据表回答：(1)组成生物体的最基本元素是_____________。(2)根据上表还可以得-高一生物
• C、H、N三种化学元素在组成人体的化学成分中，质量分数共占73%左右，而在组成岩石圈的化学成分中，质量分数还不到1%，这一事实说明了[]A．生物界与非生物界具有相似性B．生物界-高一生物
• 下列哪一项说明生物界与非生物界具有统一性的一面[]A．构成细胞的化合物在非生物界都存在B．构成细胞的无机物在自然界中都存在C．构成细胞的化学元素在无机自然界中都能找到D．生-高一生物