问题
选择题
A new study finds that sitting can shorten a person’s life almost as much as smoking can, which _______ just how damaging inactivity can be.
A．estimates
B．highlights
C．dominates
D．ensures
答案
答案：B
题目分析：句意：新的研究表明，久坐会像吸烟一样缩短人的寿命，这强调了不活动的危害。Estimates估计；highlights强调；dominates支配；ensures确保，选B。