若给定条件表达式(m)?(a++): (a--),则其中表达式m  

A、<span style="font-size: 16px; line-height: 18.88888931274414px; font-family: 宋体;">和</span><span style="font-size: 16px; line-height: 18.88888931274414px;">(m= =0)</span><span style="font-size: 16px; line-height: 18.88888931274414px; font-family: 宋体;">等价</span><span style="font-size: 16px; line-height: 18.88888931274414px;">&nbsp;</span>

B、<span style="font-size: 16px; line-height: 18.88888931274414px; font-family: 宋体;">和</span><span style="font-size: 16px; line-height: 18.88888931274414px;">(m= =1)</span><span style="font-size: 16px; line-height: 18.88888931274414px; font-family: 宋体;">等价</span><span style="font-size: 16px; line-height: 18.88888931274414px;">&nbsp;</span>

C、<span style="font-size: 16px; line-height: 18.88888931274414px; text-indent: 16px; font-family: 宋体;">和</span><span style="font-size: 16px; line-height: 18.88888931274414px; text-indent: 16px;">(m!=0)</span><span style="font-size: 16px; line-height: 18.88888931274414px; text-indent: 16px; font-family: 宋体;">等价</span>

D、<span style="font-size: 16px; line-height: 18.88888931274414px; text-indent: 16px; font-family: 宋体;">和</span><span style="font-size: 16px; line-height: 18.88888931274414px; text-indent: 16px;">(m!=1)</span><span style="font-size: 16px; line-height: 18.88888931274414px; text-indent: 16px; font-family: 宋体;">等价</span>