单项选择题

( ）is a copious or heavy discharge of blood from the blood vessels.
A、 External bleeding
B、Internal bleeding
C、hemorrhage
D、hemophilia

你可能感兴趣的试题

The door-slamming is a departure from traditional behavior and from traditional theatrical convention.

答案：正确

卫生防护带一般是针对供应生活饮用水的地下水水源地而设立的

答案：正确