The research showed beyond that smoking contributes to heart diseases. A. wonder

The research showed beyond ________ that smoking contributes to heart diseases.

 A. wonder       B. doubt      C. problem     D. use

试题答案

B

解析:

beyond doubt为固定短语，意为：无疑，确实。本句句意为：这项研究确实表明吸烟会导致心脏疾病。