赞题库-背景图
单项选择题

A ______ achievement of electronics is the electronic computer.

A．widely knowing
B．being widely known
C．widely known
D．having widely known
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热门试题

单项选择题What are you busy ______ I am busy ______ the plan for the sports meeting.

A．in... to make
B．about... to make
C．in... making
D．about... making

单项选择题A young man cannot have ______.

A．experience of all world
B．experience of all the world
C．the experience of all the world
D．the experience of all world