．The latest data______by the states suggested that the business was improving .

A．putting forward

B．to put forward

C．put forward

D．put up

清朝前期 ，“闭关锁国”政策的含义是[ ]

A．禁绝中国对外贸易

B．严格限制对外贸易

C．一概排斥西 方事 物

D．封闭边界固守疆域