第28题:[单选题]下列关于起重吊装施工安全规定错误的是( )。 A. 双机抬吊宜选用同类型或性能相近的起重机,负载分配应合理 B. 吊装大、重、新结构构件和采用新的吊装工艺应先进行试吊 C. 双机抬吊时单机载荷不得超过额定起重量 D. 高空吊装梁等大型构件应在构件两端设溜绳 参考答案:C
第29题: [单项选择]
矿山安全技术
《煤矿安全规程》规定,矿井反风设施、主要通风机必须满足风流方向在( ) min改变,反风后主要风机供风量不少于正常供风量( )。 A. 10;40% B. 10;30% C. 15;30% D. 15;50% 参考答案:A
第30题: [单项选择]糖尿病患儿饮食中营养成分的分配() A. 糖30%,蛋白质30%,脂肪40% B. 糖30%,蛋白质40%,脂肪30% C. 糖40%,蛋白质30%,脂肪30% D. 糖50%,蛋白质30%,脂肪20% E. 糖50%,蛋白质20%,脂肪30% 参考答案:E
第31题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. Take the medicine as she was directed to do. B. Schedule another appointment with her doctor. C. Stop taking the medicine. D. Rest her back for a few days. 参考答案:A 答案解析:[听力原文] W: I can’t believe I still have this pain in my back. This medicine the doctor gave me was