【单选题】为什么要在餐厅选择色温3000K左右的黄光?
B.
黄光照射下的食物颜色饱和度更高, 更能提高人的食欲
【判断题】混凝土 拌合物 用水量增大,其流动性随之增大。但用水量过大,会使 拌合物的粘聚性和保水性变差,产生严重泌水、分层或流浆,并有可能使 混凝土强度和耐久性严重降低。
【单选题】Q3 : What do we know from this conversation about the man?
A.
He has a good personal relationship with the woman.
B.
He scolds the woman for challenging his authority.
C.
He thinks the woman has a gift for Spanish.
D.
He dislikes giving advice to his students.
【简答题】试写出图5-21所示电路的输入信号和触发器输出Q之间的逻辑关系。
【简答题】电路如下图所示。试写出u o 和u i 之间的关系。
【简答题】请简单给出车头时距和车头间距的定义和计算式,并进一步说明它们与交通三参数之间的关系,写出相应的关系表达式。
【简答题】试写出图5-43所示电路的输入信号和触发器输出Q之间的逻辑关系。
【单选题】[音频] Q: What do we know from what the woman said?
A.
She prefers outdoor parking.
B.
She often has nightmares at night.
C.
She is a very experienced driver.
D.
She has scratches on her back.
【简答题】写出下列函数关系式,并指出关系式中的自变量和函数: 圆锥的底面半径为定值r,则圆锥的体积V与圆锥的高h之间的关系.
【简答题】试写出图5-22所示电路的输入信号和触发器输出Q之间的逻辑关系。