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。
A great deal has been done to remedy_ the situation. maintain 。 improve 。 assess 。 protect。
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.。
His stomach felt hollow with fear. sincere。 respectful。 terrible。 empty。
In the eighteenth century the heading of “natural philosophy” encompassed all of the sciences.
