He argued smoking, and insisted that it was argument that smoking was harmful to health.
A. for; beyond
B. against; over
C. for; over
D. against; beyond
网友回答
A. for; beyond
B. against; over
C. for; over
(答案→)D. against; beyond
解析：考查介词。against 是反对的意思；而beyond argument无可争辩。句意：他反对吸烟，并坚持认为吸烟对健康有害是无可争辩的。