皮皮学,免费搜题
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搜题
【单选题】
脂肪酸氧化的限速酶是
A.
肉碱脂酰转移酶
B.
△2烯酰水化酶
C.
脂酰辅酶A脱氢酶
D.
L-β羟脂酰辅酶A脱氢酶
E.
β酮脂酰辅酶A硫解酶
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皮皮学刷刷变学霸
举一反三
【单选题】下列产品的使用,不会对环境造成污染的是(  )
A.
含磷洗衣服
B.
酒精
C.
氟利昂
D.
含汞电池
【单选题】乙级防火窗的耐火极限为不低于_____。
A.
1.5h
B.
1.Oh
C.
0.9h
D.
0.6h
【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】某公司招聘信息: 1项目主管......要求有较强的学习理解能力,良好的团队精神和责任感。 2日语翻译:......要求有较强的学习理解能力,良好的团队精神和责任感。 3网管:......要求有较强的自学能力,擅长沟通和表达。 一个人在学校所学的东西会随着时间的推移而越来越没有用处,学习能力就成为人才非常重要的特征。这重要体现在( )
A.
社会发展制约个人的活动
B.
个人活动对社会发展产生能动的影响
C.
学习是个人最根本的属性
D.
学习是人的共同的自然属性
【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】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挡位
D.
减少发动机的磨损
【单选题】汽车抛锚后,不宜长距离着地高速拖拽,是为( )。
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
【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
【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
【单选题】When turning a large, slow –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 preheater should be gradually reduced after switching over the three-way valve
C.
The heating steam to the preheater 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
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