如意金黄散中含有( ) A．苛辣性毒素 B．番禾鳖碱 C．乌头碱 D．二硫化二砷(A 发布时间：2019-06-01 23:53 │ 来源：www.tikuol.com 题型：单项选择题 问题： 如意金黄散中含有( )A．苛辣性毒素B．番禾鳖碱C．乌头碱D．二硫化二砷(As2S2)E．汞
题型：单项选择题 男，36岁，口腔浅表溃疡、阴部、肛门溃疡，视力降低，关节酸痛，红细胞4．17×10／L。眼底造影：视网膜及视神经 * * 呈弥漫性染色该病人眼部表明（）A.血管通透性增加B.色素沉着C.炎症D.变性E.肿胀 查看答案
题型：单项选择题 There are about fifteen hundred languages in the world. But 36 a few of them are very 37 .English is one of these. Many, many people use it, not only in England and the U.S.A., but in other parts of the world. About 200,000,000 speak it as their own language. It is difficult to say how many people are learning it as a 38 language. Many millions are 39 to do so. Is it easy or difficult to learn English? Different people may have different 40 Have you ever 41 ads of this kind in the newspapers or magazines? "Learn English in six weeks, or your 42 back..." "Easy and funny! Our records and tapes 43 you master your English in a month. 44 the first day your 45 will be excellent. Just send …"Of course, it never 46 quite like this. The only language that seems easy to learn is the mother tongue. We should 47 that we all learned our own language well when we were 48 . If we could learn English in the same way, it would not seem so difficult. 49 what a small child does. He listens to what people say. He tries what he hears. When he is using the language, talking in it, 50 in it all the time. Just imagine how much 51 that gets! So it is 52 to say that learning English is easy, because a good command of English 53 upon a lot of practice. And practice needs great effort and 54 much time. Good teachers, records, tapes, books, and dictionaries will 55 . But they cannot do the student's work for him.（词数278）小题1:A．notB．quiteC．onlyD．very小题2:A．difficultB．importantC．necessaryD．easy小题3:A．nativeB．foreignC．usefulD．mother小题4:A．learningB．enjoyingC．tryingD．liking小题5:A．questionsB．problemsC．ideasD．answers小题6:A．foundB．watchedC．noticedD．known小题7:A．knowledgeB．timeC．moneyD．English小题8:A．makeB．helpC．letD．allow小题9:A．FromB．OnC．SinceD．After小题10:A．spellingB．grammarC．EnglishD．pronunciation小题11:A．happenedB．lookedC．seemedD．felt小题12:A．knowB．rememberC．understandD．think小题13:A．studentsB．childrenC．babiesD．grown-ups小题14:A．ImagineB．MindC．DoD．Think of小题15:A．usingB．thinkingC．tryingD．practicing小题16:A．timeB．moneyC．languageD．practice小题17:A．hardB．easyC．funnyD．silly小题18:A．dependsB．triesC．hasD．takes小题19:A．usesB．takesC．getsD．costs小题20:A．doB．workC．helpD．master 查看答案
题型：单项选择题 关于能源的利用和节能，下列说法正确的是（ ）A．根据能量的守恒定律，能源的利用率应该是100%B．在能源的利用中，总会有一部分能源未被利用而损失掉C．节约能源只要提高节能意识就行，与科技进步无关D．由于能量不会消灭，也不会创生，总是守恒的，所以节约能源意义不大 查看答案