It's quite strange that the man sleeps with his mouth____ and his eyes _____.

A．closed; open

B．closed; opened

C．closing; open

D．closing; opening

通信导航监视设施防雷建设，应对当地雷电环境、土壤、气象、地形、地质条件进行认真调查和评估，确定（）

A、雷电防护区

B、雷电屏蔽

C、避雷等级

D、雷电防护等级