In the dark forests＿＿＿，some of which are large enough to hold several small towns.

A．are lying many lakes

B．do many lakes lie

C．many lakes lie

D．lie many lakes

重要的信息机房应实行7×24小时有人值班，具备远程监控条件的，正常工作时间以外可以实行无人值守。