请在第__61__处填上正确答案。 cool。 nuclear。 star。 cold。
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。
In the eighteenth century the heading of “natural philosophy” encompassed all of the sciences. category。 teachings。 ideology。 leaders。
John is eligible for this job. accepted。 recommended。 rejected。 recommended。
A great deal has been done to remedy_ the situation.
