[单项选择]对建筑施工单位安全生产管理人员的初次培训应不少于()学时。 A. 16 B. 32 C. 48 D. 64
参考答案:C
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第1题: [单项选择]Ring groove inserts are occasionally used on aluminum alloy piston to() A. reduce the ring groove wear rate B. seal against crankcase vapors C. lessen the wear on aluminum part of the cylinder D. allow for the greater expansion rate of aluminum 参考答案:A
第11题:[单选题](20分)单选题 20 下列部位不是细菌常寄居的部位: A. 唇腺 B. 皮脂腺 C. 牙周袋 D. 鼻腔 E. 扁桃体 参考答案:A
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第12题: [单项选择]Which of the following is NOT creative A. Discovering new combinations. B. Discovering new applications of things. C. Finding a solution along conventional lines. D. Developing new method and techniques. 参考答案:C 答案解析:细节推理题。有创造力的表现有多种,但用传统的方法解决问题不在其中。