At different times in a man’s life his food has different effects on his body. Among children food is quickly changed to the power to run and play games. Most of a young man’s food is spent on growing tall; we grow upwards only during the first twenty years of our lives, not later. Working men get their strong bodies from their food; and if they work hard , they do not get fat. Office workers eat well and sit down a lot, and may begin to grow fat when still quite young. Many older people try to work much and walk often. Perhaps the most difficult time is when a man reaches sixty years of age. His body and mind become restful, without much work or interest. That is when food changes quickly to fat .
最新问答: 2元1次方程解的问题 在2元1次方程组的解里 比如x=1 y=一个数 如果那个数是分数,是假分数还是带分数 还 是 都可 求90后非主流唯美作文~ 小明和小迪要载4课树苗,要使每颗相距5米,目前只有个十米的皮尺,使4棵在一条直线上,并回答设计根据 两人参加射击比褰打中靶一枪得20分脱靶一枪扣12分,两人共打了20发子弹得208分,甲比乙多得64分,甲乙打中了多少靶? “我相信地心有一个太阳”是什么意思 火车进隧道佯谬(相对论高手进)一火车静长与隧道静长都为l,山上有人看到当火车完全进入隧道时(按相对论火车长度要收缩),隧 微分方程的通解什么意思,好评 My bike is broken.的同义句是什么? ·1mol/l的盐酸等于百分之几 .pH=11.21的有效数字为4位.(× ) 这句话是错的, 去年甲产品的价值用货币表示为10元,生产该产品的A企业,全年生产的产品数量为100万件。如果今年A企业劳动生产率提高了5 若不等式组x>a+1,x 有界变量乘以无穷大量是什么求大神帮助 英语翻译12月14日,发生了一件震惊物理学界,天文学界和众多科学家的灵异事件——14号晚上爆发的双子座流星雨出现了无法用 1.一个跑道内侧周长是400米,R=44米,r=40米.小明和小刚进行400米比赛,小明跑内圈,小刚跑外圈.如果起点设在 初中一年级的学生语文不好,在寒假怎样预习才能把成绩提高上来?英语和数学又怎样预习? 保险粉和氯水的反映方程式是什么?、急用 压力的作用效果就是压强吗如题,我需要肯定点的回答,说清楚的一定追分! 下列消化液中,既能消化淀粉、脂肪,又能消化蛋白质的一组是( ) 该独立结构的主语与句子的主语有什么不一样呢?主语不都是sentences吗?