There _____ some water in the glass. [ ]
A. are
B. is
C. am
答案:B
实行向汉族学习的政策,促进了北方民族融合的是[ ]
A.商鞅
B.北魏孝文帝
C.齐桓公
D.成吉思汗
食物的四性是指食物温、热、寒、凉的性质。()