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【判断题】
数学模型是描述系统输入、输出量以及内部各变量之间关系的数学表,它揭示了系统结构及其参数与其性能之间的内在关系。
A.
正确
B.
错误
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【多选题】团队精神的一个重要特征就是:
A.
支持团队成功把事情做好
B.
在其位谋好其事
C.
随时准备为团队牺牲个人
D.
放弃个人价值追求
【单选题】下列产品的使用不会对环境造成污染的是
A.
含磷洗衣粉
B.
氢气
C.
一次电池
D.
【单选题】宽屏显示器最常见的画面比例显示为
A.
16:9
B.
4:3
C.
21:10
D.
5:4
【单选题】When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil? .
A.
The diesel oil must never be allowed to mix with the heavy fuel
B.
The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valve
C.
The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valve
D.
The heating steam must be secured before the diesel oil passes through the three-way valve
【单选题】When a larger, low speed, main propulsion diesel engine running on heavy fuel, which of the following precautions should be observed when changing over to diesel oil?
A.
The diesel oil must never be allowed to mix with the heavy fuel
B.
The temperature of the fuel from the pre-heater should be gradually reduced after switching over the three-way valve
C.
The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valve
D.
The heating steam must be secured before the diesel oil passes through the three-way valve
【单选题】乙级防火窗的耐火极限为不低于( )。
A.
1.5h
B.
1.0h
C.
0.9h
D.
0.6h
【判断题】单色釉料分为低、中、高温色釉。
A.
正确
B.
错误
【单选题】汽车抛锚后,不宜长距离着地高速拖拽,是为了 。
A.
减小拖拽汽车的功率损耗
B.
防止行星齿轮机构因润滑不良而磨损过甚
C.
防止自动变速器自动换上档位
D.
减少发动机的磨损
【简答题】材料一:马克思主义是发展的理论,它随着社会实践的发展而发展。马克思主义在中国传播和发展的过程就是马克思主义中国化的过程,在这一过程中产生了思想、理论和“”重要思想。 材料二:14—15世纪欧洲的文艺复兴运动,是一声场反映新兴资产阶级利益和要求的、反封建反神权的思想文化运动,它孕育了一大批思想先锋和文化巨匠,促进了欧洲文化的空前繁荣,为资本主义的发展开辟了道路。谈谈你对哲学与时代...
【判断题】黄绿色起毛布料: 漫反射:197、180、69、37、166、197; 反射:反射光泽度:0.8;细分:25;打开“菲涅耳反射”; 折射:折射率:2.5 双向反射分布函数:沃德; 贴图/反射:反射值:80; 凹凸:凹凸值:150; 置换:细胞:细胞参数/细胞颜色:变化31.4;分界颜色:亮度都为0;细胞特性:圆形/大小:0.1/扩散:0.86/凹凸平滑:0.33;阀值:低:0.06/中:0.27;...
A.
正确
B.
错误
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