可转换公司债一般要经（）决议通过才能发行。

A．股东大会

B．总经理

C．监事会

D．董事会

39. As we have known from the map of the world, this is ______.

A．twice as large an island as that

B．twice as larger as that island

C．as twice as that one

D．twice as a large island as that