在物质和精神生活中，由于感受和意识到自己的理想和目标而得到精神上的满足，称之为（）
A.荣誉
B.幸福
C.享受
D.欣慰
参考答案：B
Just at the corner of the street _________, more than half of which date back to at least 100 years ago. [ ]
A. stand some old shops
B. do some old shops stand
C. some old shops stand
D. some old shops do stand
用一根质地均匀的粉笔在黑板上写字，粉笔变短了，下列说法中错误的是[ ]
A、粉笔的质量变小
B、粉笔的体积变小
C、粉笔的密度变小
D、粉笔的重力变小
