We used to believe that near-or far-sightedness were inherited from __________.
A.our parents B.clouded vision C.eye muscles D.our eyes E.computer use F.eye move
参考答案:
答案解析:
A 10-15 minutes' exercise will help you bear a heavier back
A 10-15 minutes' exercise will help you bear a heavier backpack.A.Right B.Wrong