gaokao 2022 Q1

gaokao · China · national-B-science 5 marks Probability Definitions Set Operations
Let the universal set $U = \{ 1,2,3,4,5 \}$, and set $M$ satisfies $C_U M = \{ 1,3 \}$. Then
A. $2 \in M$
B. $3 \in M$
C. $4 \notin M$
D. $5 \in M$
Let the universal set $U = \{ 1,2,3,4,5 \}$, and set $M$ satisfies $C_U M = \{ 1,3 \}$. Then\\
A. $2 \in M$\\
B. $3 \in M$\\
C. $4 \notin M$\\
D. $5 \in M$