庸俗的生活情趣[ ]

A．有益于个人的身心健康        

B．会损害人的身心健康

C．符合科学精神和科学生活的要求

D．符合现代文明的要求

This company was the first _____ portable radios as well as cassette tape recorders in the world．

A．producing

B．to produce

C．having produced

D．produced