【单选题】
选择正确的第三视图()<br /> <img src="https://nimg.ppkao.com/2018-09/wangjing/2018092013384632686.jpg?sign=455984f1c07ce495a120d05506c6f327&t=62d32703" /><br /> <img src="https://nimg.ppkao.com/2018-09/wangjing/2018092013385874225.jpg?sign=63f6217d36020cb1f284830473bbf858&t=62d32703" />
A、A
B、B
C、C
D、D