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题目：
单选题
A吸氧
B抗过敏
C纠正心衰消除肺水肿
D解除痉挛
E等待自然分娩
答案：
<查看本题扣1积分>
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YB95型条盒透明纸包装机负压系统气源由（）提供。
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内燃机车水阻实验前低压回路用500∨兆欧表测绝缘电阻不得低于0.25ΜΩ
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Materials and Tools for Language Learning ① The range of materials and tools available to help you with your language studies is huge, from dictionaries to language courses. All of them can help you in different ways, and the appropriate use of these materials and courses will make your language learning much easier and more effective. ② Possibly the most useful tools there are for learning a language are dictionaries. Dictionaries come in a number of formats including bilingual, monolingual, illustrated, electronic and online. Bilingual dictionaries are perhaps the most useful ones for beginners and intermediate learners, while monolingual dictionaries, which are designed for native speakers, are also useful for advanced learners. Pocket dictionaries are good for quick reference and easy to carry around. Larger dictionaries are better if you want more definitions, examples of usage, and information about pronunciation, and grammar. Electronic dictionaries are available as handheld units, or as software. Handheld ones are portable, easy and quick to search, and often provide other functions, such as, text-to-speech, voice recognition and speech synthesis organizers, address books. They tend to be rather expensive though. Software dictionaries offer many of the same functions, and can be used on computers, and mobile phones. ③ The traditional courses tend to consist of textbooks containing dialogues, exercises, notes on grammar, and maybe cultural information. Accompanying cassettes, CDs and/or mp3s are often available. Most such courses are intended for complete beginners or people with only minimal knowledge of the language. Intermediate and advanced-level courses are available for some of the popular languages, such as French, German, Italian and Spanish. ④ Audio courses usually consist solely of cassettes or CDs, though some may also include a limited amount of printed material. All dialogues, exercises, instructions and explanations are recorded and the focus of these courses is teaching you to understand and speak the languages. They are very good at teaching you authentic pronunciation and a manageable amount of vocabulary. ⑤ Various computer-aided courses are available on CD-ROMs and DVDs. Each course is different but they generally include dialogues, audio, exercises and tests. Some also include phrasebooks, dictionaries, videos, games and provide online and/or telephone support. 1.Paragraph①（） 2.Paragraph②（） 3.Paragraph③（） 4.Paragraph④（） 5.Paragraph⑤（） A. What is the function of audio courses? B. What is the function of flash cards? C. What is the function of traditional courses? D. What are the most useful tools for language learning? E. What is the function of computer-aided courses? F. What can help you a lot with your language learning? 下列选项正确的是（）。 The materials and tools available to help you with your language studies range（）. The appropriate use of these materials and courses will enable you to learn language（） Larger dictionaries will provide the learners with（） The traditional courses are designed for（） With audio courses, you can learn（）
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患者男，45岁，白血病骨髓移植术后50d，开始出现头痛、乏力、肌肉酸痛，之后出现干咳、发热，听诊两肺未闻及异常，胸片见两下肺散在少许片状和明显间质浸润阴影，血WBC正常，以静脉滴注头孢他啶2g，2次/d抗感染治疗5d症状未见好转，呼吸困难明显加重，胸部CT检查提示两肺浸润范围较前明显增加，累及多个肺叶段，均以间质浸润为主。最可能的诊断是（）。
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后前位胸片于右主支气管角部可见小椭圆形致密影，这是（）
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旅游工作人员在处理旅游者的抱怨和投诉时应具有怎样的态度？
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根据生物学特性的不同，属于宿根花卉的是（）。
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对大中型异步电动机，要检查（）和通道内是否有残留焊条、焊锡粒、铁屑或冥他杂物。
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用旋转法吊装设备时，在搬运设备时应使设备上三点在同一个圆弧上，简称“三点一圆弧”，下列哪个不是这三个点（）。
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汉族民歌的体裁一般可划分为（）、（）、（）三种。