属于民政部门职责的是()
A.负责对农村剩余劳动力进行疏导
B.负责收容遣送工作
C.负责对流动人口的健康检查
D.负责对房屋出租的管理和市容、环境卫生监察
参考答案:B
Chinese President Hu Jintao called for an immediate cease-fire in Libya _____ an even worse humanitarian crisis in the country at the BRICS Summit in Hainan Province.
A.to prevent
B.to have prevented
C.preventing
D.having prevented
下列哪些是主动脉瓣关闭不全的病因()
A.风湿性心脏病
B.主动脉夹层动脉瘤
C.马方综合征
D.细菌性心内膜炎
E.先天性主动脉瓣畸形