勤劳节俭是一切美德的基础，懒惰奢侈则是一切罪恶的根源。
参考答案：对
—I feel tired and sleepy.
—Why not stop _______?[ ]
A. resting
B. relaxed
C. to relax
D. relaxing
下列哪一种是闭合性损伤
A．擦伤
B．刺伤
C．挫伤
D．切割伤
E．裂伤
