请在第__57__处填上正确答案。 putting。 covering。 cheating。 tricking。
According to the passage, it may soon be possible__________ to make something as good as human skin。 to produce drugs without side effects。 to transplant human organs。 to make artificial hearts and eyes。
John is eligible for this job. accepted 。 recommended 。 rejected 。 recommend。
John is eligible for this job. accepted。 recommended。 rejected。 recommended。
Which of the following statements is true according to the passage? Most women take walking as their only recreational activity.。 The study aims to track the health conditions of its subjects.。 Irregular walking increased the risk of breast cancer in post-menopausal women。 Walking was the only recreational activity for about half of the women.。
These programs are of immense value to old people.
