13、He has got lung cancer _______ smoking twenty cigarettes a day.
A.
so B. as a
result C. as a result of D. so that
13、C


科目:高中英語(yǔ) 來(lái)源: 題型:
He has got lung cancer _______ smoking twenty cigarettes a day.
A. so B. as a result C. as a result of D. so that