例题： OG12-60 While all states face similar industrial waste problems, the predominating industries and the regulatory environment of the states obviously determines the types and amounts of waste produced, as well as the cost of disposal.
(A) all states face similar industrial waste problems, the predominating industries and the regulatory environment of the states obviously determines (B) each state faces a similar industrial waste problem, their predominant industries and regulatory environment obviously determine (C) all states face a similar industrial waste problem; their predominating industries and regulatory environment obviously determines (D) each state faces similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determines (E) all states face similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determine
OG12-13 A surge in new home sales and a drop in weekly unemployment claims suggest that the economy might not be as weak as some analysts previously thought.
A and B的形式，如果A和B表示的两个不同的东西，那么谓语动词用复数。有少数例外，比如 a painter and composer，指的是一个人既是画家又是作曲家，用单数。a painter and a composer，一个画家和一个作曲家，用复数。 希望能帮到你。
-- by 会员 kevin0214 (2010/11/13 15:22:38)
明白了，是根据意思决定的，是吧？ 谢谢。 我又看到了一个例子和ls说的类似：OG12-137：Joachim Raff and Giacomo Meyerbeer are examples of the kind of composer who receives popular acclaim while living, but whose reputation declines agter death and never regains its former status.
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发表于 2010-11-11 20:03:01
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