更多"[判断题]若Y=AB，则Y=A+B"的相关试题:
[单选题]设 AB 距离为 120m，全站仪测得方位角为 120°0′0″，则 AB 的 y 坐标增量为( )m。
A.-90
B.60
C.90
D.-60
[单选题]
Y=AB+AB表示（）。
A.A、B相同则Y=1
B.A、B不同则Y=1
C.A、B均为1则Y=1
D.A、B有一个为1则Y=1
[单选题]
Y=AB+AB,则（）。
A.A、B相同则Y=1
B.A、B不同则Y=1
C.A、B均为1则Y=1
D.A、B有一个为1则Y=1
[判断题]已知A、B两点坐标，其边长SAB=对(△X2AB+△Y2AB)（ ）
A.正确
B.错误
[单选题]
若Y(A,B,C)=ABC，则（）。
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[单选题]
Y=AB+BC+A=（）。
A.A+BC
B.A
C.BC
D.ABC
[单选题]
Y=AB+BC有（）个最小项。
A.3
B.4
C.6
D.5
[单选题]
Y=A+B，若A=0，则Y=（）。
A.0
B.A
C.B
D.1
[单选题]若消费者张某只准备买两种商品X和Y,X的价格为10,Y的价格为2。若张某买了7个单位X和3个单位Y,所获得的边际效用值分别为30和20个单位,则( )。
A. 张某获得了最大效用
B. 张某应该增加X的购买,减少Y的购买
C. 张某应当增加Y的购买,减少X的购买
D. 张某要想获得最大效用,需要借钱
[单选题]
若Y(A,B,C)=∑m(1,2,5,7)，则（）。
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[单选题]若Y连接中三个电阻相等，等效为△连接中三个电阻也相等，它们的关系满足(___)。
A.RY=1/3R△
B.RY=3R△
C.RY=R△
D.0
[单选题]如图所示为某电路的一部分，三个电阻的阻值均为R。若在AB间加上恒定电压，欲使AB间获得最大功率，应采取的措施是
A.S1、S2都断开
B.S1、S2都闭合
C.S1闭合、S2断开
D.S1断开、S2闭合
[填空题]同一施工多点进行作业，若为AA类施工，按（）施工计划审批；若为AB类施工，应（）。
[单选题]
Y(A,B,C)=AB的最小项表达式为（）。
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[单选题] 在（）的情况下，函数Y=AB运算的结果是逻辑"0"。
A.全部输入是"0"
B.任一输入是"0"
C.任一输入是"1"
D.全部输入是"1"
[单选题]
Y(A,B,C)=AB+BC的有（）个最小项。
A.3
B.4
C.2
D.8
