We need an effective strategy to help children living in ______ poverty to have the opportunity to receive ______ good education.

A．/ ; a

B．a ; /

C．/ ; the

D．the ; a

有创血压监测并发症的预防包括（）

A.注意无菌操作

B.减少动脉损伤

C.连续或经常用肝素稀释液冲洗

D.套管针不宜太粗

E.末梢循环欠佳时，应立刻拔出套管