. Nokia, the world's largest mobile phone maker, said that over the first nine months of the year it _____ 23 million handsets in China, an increase of 77 percent _____ the same period a year ago. 

A．sold; comparing with

B．has sold; compared to

C．had sold; compared to

D．was selling; compared with

防火阀安装位置检查时，在防火阀两侧各（）范围内的风管及其绝热材料采用不燃材料。

A.1.0m

B.2.0m

C.3.0m

D.4.0m