题目

（题文）（2016 • 江苏卷）Many young people, most _________were well-educated, headed for remote regions to chase their dreams.A. of which B. of themC. of whom D. of those 答案：【答案】C【解析】试题考查定语从句。本题定语从句的先行词是Many young people，关系代词whom指代先行词，在定语从句中作介词of的宾语。故C项正确。下列各组的排列顺序中，正确的是（　　）A．原子半径Na＜Mg＜AlB．酸性H2SiO3＜H2CO3＜H2SO4C．稳定性HF＜HCl＜HBrD．碱性NaOH＜Mg（OH）2＜Al（OH）3