下列哪种情况最易并发脑血管栓塞（）
A.二尖瓣狭窄伴心房颤动
B.心肌炎
C.高血压
D.肺动脉瓣关闭不全
E.肺动脉瓣狭窄
参考答案：A
Poor Richard spent his last penny on a bowl of noodles. Now he is______.
A．as strong as a horse
B．as busy as a bee
C．as poor as a church mouse
D．as cool as a cucumber
十八大报告指出：要坚持依法治国和以德治国相结合，加强（）教育，弘扬中华传统美德，弘扬时代新风。
A.职业道德
B.家庭美德
C.社会公德
D.个人品德
