单项选择题
A．Hong Kong plays an important part in the trade between China and the world B．Cantonese is the official language of Hong Kong C．English is the mostly-used language in business D．Mandarin is as important as English in business
A．expert B．director C．foreigner D．English
A．Mainly English directors. B．Mainly Chinese directors. C．Experts with London MBA. D．Persons with Hong Kong family connects.