單項(xiàng)選擇題判斷元素x∈A對(duì)應(yīng)的表達(dá)式是()

A.~A
B.A==0
C.A&(~(A&B))
D.1<<(x-1)&A==1<<(x-1)


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1.單項(xiàng)選擇題實(shí)現(xiàn)集合運(yùn)算求補(bǔ)集~A運(yùn)算的對(duì)應(yīng)表達(dá)式是()

A.~A
B.A==0
C.A&(~(A&B))
D.1<<(x-1)&A==1<<(x-1)

2.單項(xiàng)選擇題實(shí)現(xiàn)集合運(yùn)算AB運(yùn)算的對(duì)應(yīng)表達(dá)式是()

A.A∣B
B.A&B
C.A&(~(A&B))
D.A∣B==B

3.單項(xiàng)選擇題實(shí)現(xiàn)集合運(yùn)算A-B運(yùn)算的對(duì)應(yīng)表達(dá)式是()

A.A∣B
B.A&B
C.A&(~(A&B))
D.A∣B==B

4.單項(xiàng)選擇題實(shí)現(xiàn)集合運(yùn)算A&B運(yùn)算的對(duì)應(yīng)表達(dá)式是()

A.A∣B
B.A&B
C.A&(~(A&B))
D.A∣B==B

5.單項(xiàng)選擇題實(shí)現(xiàn)集合運(yùn)算AUB運(yùn)算的對(duì)應(yīng)表達(dá)式是()

A.A∣B
B.A&B
C.A&(~(A&B))
D.A∣B=B