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【多选题】
.根据标准化法的规定，下列关于标准的理解正确的是（ ）。A.
按照标准的级别不同，标准分为国家标准、行业标准、地方标准和企业标准
B.
对需要在全国某个行业范围内统一的技术要求，应当制定国家标准
C.
对没有国家标准和行业标准而又需要在省、自治区、直辖市范围内统一的技术要求，可以制定地方标准
D.
企业生产的产品没有国家标准、行业标准和地方标准的，可以制定相应的企业标准，作为组织生产的依据
E.
建筑安全监督管理机构应当对工程项目执行强制性标准情况进行监督检查
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【简答题】Three of them have gone to the library. What about__________？
【多选题】What are you expected to check before you upload your writing script?
A.
All the sentences have subjects and predicates.
B.
The structures and phrases are used in the correct way.
C.
The part of speech of the words are used as in the right way.
D.
The sentences are written according to the Chinese we think of strictly.
【简答题】The following passage is about how to make use of email effectively. Listen to it and write down what you hear. Try to make your writing as precise as possible. After you finish listening, please uplo...
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