Question

3. In his research,Dr. Smith        what had long been feared that smoking does cause lung cancer.

   A. measured   B. multiplied   C. terrified   D. confirmed

Answer 1

3. D句意为："在其研究报告中，史密斯博士证实了人们长久以来的担忧：抽烟引起肺癌。" confirm意为"证实，确认"；measure意为"衡量，测量"；multiply意为"增加;繁殖"；terrify意为"吓坏,令……恐惧"。