A.They care much about their health.B.They eat foods with little fat.C.They use little oil
A. They care much about their health.
B. They eat foods with little fat.
C. They use little oil in cooking.
D. They have lower mortality rates.
以弹簧变形来吸收轿厢成对重产生动能的缓冲器，称之为()
A. 油压缓冲器
B. 蓄能型缓冲器
C. 耗能型缓冲器
在中国近代文学，最早高度评价和极力提倡小说创作的人是：()
A. 康有为
B. 梁启超
C. 鲁迅
D. 胡适
在座姿划船练习时，阻力的方由是()
A. 向前
B. 向后
C. 向上
D. 向下
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