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工商及科技局测试必须通过您的操作工测试所需的所有培训材料。
The CITB Health Safety & Environment test has all the training material needed to pass your Operatives and Specialists test.关于CITB Operatives
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工商及科技局测试必须通过您的操作工测试所需的所有培训材料。
The CITB Health Safety & Environment test has all the training material needed to pass your Operatives and Specialists test.