A:This is a blue shirt.
B:This is a yellow shirt.
C:This is a red shirt.
①人体必需的元素摄入不足会影响人体的正常生理活动.下列做法不能达到目的是____.
a.补碘﹣﹣食用加碘盐
b.补铁﹣﹣使用铁强化酱油
c.补钙﹣﹣服用葡萄糖
②人体内有8种氨基酸必需通过食物摄入,某品牌饼干含有的下列物质中能转化为氨基酸的是____.
a.纤维素 b.蛋白质 c.油脂
③人类历史上最重要的抗生素是____.
a.青霉素 b.维生素 c.胡萝卜素.
–What do you think of this ________?–I love it. I learned a lot about Steve Jobs after reading it.