以下程序运行后，消息框的输出结果是( )。OPTION BASE 1PRIVATE SUB COMMAND1_CLICK( ) DIM A(10) , P(3) AS INTEGER K=5 FOR I=1 TO 10 A(I) = I NEXT I FOR I=1 TO 3 P(I)=A(I*I) NEXT I FOR I=1 TO 3 K=K+P(I) ~ 2 NEXT I MSGBOX KEND SUB

A．33

B．28

C．35

D．37

下列电离方程式书写错误的是(    )

A．Al₂(SO₄)₃ ="=" 2 Al ³⁺ + 3SO₄^2—

B．NaHSO₄ ="=" Na⁺ + H⁺ + SO₄^2—

C．Ca(OH)₂ ="=" Ca²⁺ +2OH^—

D．Na₂CO₃ ="=" Na₂⁺ + CO₃^2—