gre考试阅读真题解析(B)_GRE阅读

　　 Its results have been superseded by subsequent research in the field of microgravity protein crystal growth.

　　 Its results are still considered by some to be evidence for the advantages of microgravity protein crystal growth.

　　 Its results are considered by many to be invalid because nonstandard techniques were employed.

　　18. It can be inferred from the passage that the author would find the Space Lab experiment more impressive if which of the following were true?

　　 The results of the Space Lab experiment could be replicated in producing other kinds of crystals in addition to lysozyme protein.

　　 The device used in the experiment produced larger crystals on Earth than it did in space.

　　 The size of the crystals produced in the experiment exceeded the size of crystals grown in Earth laboratories using standard techniques.

　　 The cost of producing the crystals in space exceeded that of producing them using standard laboratory techniques.

　　 The standard techniques used in Earth laboratories were modified in the Space Lab experiment due to the effects of microgravity.

　　19. Which of the following can be inferred from the passage about the device used to grow crystals in the Space Lab experiment?

　　 The device is more expensive to manufacture than are the devices used in standard techniques in an Earth laboratory.

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