问题
选择题
Liu Xuan is really ________,she is very good at math, physics and chemistry.
A．outgoing
B．smart
C．athletic
D．quiet
答案
答案：B
题目分析：句意：刘璇真的很聪明，他擅长数学，物理和化学。A. outgoing外向的B. smart
聪明的 C. athletic 强健的D. quiet安静的
根据句意故选B.