animals are in danger and there will be        space for them if we don’t take any actions.

A．More and more, more and more

B．Less and less, less and less

C．More and more, less and less

D．Less and less, more and more

有抗震要求的柱筋、箍筋加密区不小于（）mm

A、200

B、500

C、800

D、1000