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It is said that the number of Chinese characters users can type on their mobile phones is ______ the total number of Chinese characters. The reason is that the character input systems are made by foreign cell phone producers. 

A. 25 percent as less as               B. less than 25 percent  

C. 25 percent much than              D.25percent as much

It is said that the number of Chinese characters users can type on their mobile phones is ______ the total number of Chinese characters. The reason is that the character input systems are made by foreign cell phone producers. 

A．25 percent as less as                           B．less than 25 percent

C．25 percent much than                          D．25percent as much