网络度是指单位长度内有效网络点的个数，即（）长的丝条上有效网络点的个数。_涤纶生产_全学科试题题库

当前学科：涤纶生产

题目：单选
网络度是指单位长度内有效网络点的个数，即（）长的丝条上有效网络点的个数。
答案： <查看本题扣1积分>

查看答案

答案不对？请尝试站内搜索

推荐知识点:

患者，男性，60岁，突然持续性胸痛5小时入院，查心电图确诊为广泛前壁心肌梗死，入院后出现三度房室传导阻滞，QRS波群宽大畸形，心率为40次/分。该阻滞部位可能在（）

患儿任某，女，3岁。高热神昏，痉厥抽搐，尿赤便秘，舌红绛苔干黄，脉数有力。治宜选用（）

采用喷身混凝土作隧道支护的主要优点（）。

2～4mol／L硫酸溶液（）。

最有可能的诊断是（）本病已确诊，下列处理哪项不当（）该患儿应隔离至出疹后（）

计算个体工商户的生产经营所得时，不得在个人所得税税前扣除的项目有（）。

根据《作业场所职业危害申报管理办法》，生产经营单位通过“作业场所职业危害申报与备案管理系统”进行电子数据申报，同时将《作业场所职业危害申报表》加盖公章并由生产经营单位主要负责人签字后，连同有关资料一并上报所在地相应的（）。

何谓终极噪声?

1盎司=（）克

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. With audio courses, you can learn（）