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托福语法易错题精汇中3道不明白的题
20.Bromyrite crystals [have] a diamond-like luster and are usually [colorless],but they [dard] to brown when [exposed] to light. ？
答对率：44%
答案：c
15.While studying the [chemistry] [of human body],Dr.Rosalyn Yalow won a Nobel Prize for the research she [conducted on] the [role of] hormones.？
答对率：37%
答案：b
6.Salt is manufactured in quantities that exceed those of most,.......,other commercial chemicals. ？
A.of an not
B.not if an are
C.are not an
D.if not an
答对率：49%
答案： d
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发表于 2003-10-7 05:28:00
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