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【Daily Question】Utilities - Mechanical & Electrical - 20191113

2019-11-13View Original

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The qualification certification for non-destructive testing personnel is based on industry-based assessments and certifications, and the qualification levels for different types of non-destructive testing personnel are classified as follows ( ).    A. Level 1, 2, 3 B. Beginner, intermediate, advanced C. Grades I, II, III D. Four levels. Answer: C

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