有关春秋战国时期“百家争鸣”的描述,不正确的是[ ]
A、形成中国的传统文化体系
B、奠定中国奴隶主经济基础
C、中国历史上第一次思想解放运动
D、该时期生产力发展的必然结果
答案:B
Our English teacher is ill, and we are all ______ her health.
A.careful of
B.concerned about
C.interested in
D.calm about