针灸治疗青光眼虚证多采用()

A．先灸后针

B．先针后灸

C．只针不灸

D．只灸不针

E．以针为主

The argument remains extremely heated ________ it is worthwhile for China to open its door to foreign

cars.   [ ]

A．that  

B．which  

C．if  

D．whether