13. A majority of the international journalists surveyed view nuclear power stations as unsafe at present but that they will, or could, be made sufficiently safe in the future. (A) that they will, or could, (B) that they would, or could, (C) they will be or could (D) think that they will be or could (E) think the power stations would or could 时态的原因,if一般现在时,则主句一般将来,could表较弱语气的推测? 但是D中的they不会有指代不明的错误吗,journalists or stations? 32. A study commissioned by the Department of Agriculture showed that if calves exercise and associated with other calves, they will require less medication and gain weight quicker than do those raised in confinement. (A) associated with other calves, they will require less medication and gain weight quicker than do (B) associated with other calves, they require less medication and gain weight quicker than (C) associate with other calves, they required less medication and will gain weight quicker than do (D) associate with other calves, they have required less medication and will gain weight more quickly than do (E) associate with other calves, they require less medication and gain weight more quickly than E 最后加上一个do还对吗 33. A star will compress itself into a white dwarf, a neutron star, or a black hole after it passes through a red giant stage, depending on mass. (A) A star will compress itself into a white dwarf, a neutron star, or a black hole after it passes through a red giant stage, depending on mass. (B) After passing through a red giant stage, depending on its mass, a star will compress itself into a white dwarf, a neutron star, or a black hole. (C) After passing through a red giant stage, a star’s mass will determine if it compresses itself into a white dwarf, a neutron star, or a black hole. (D) Mass determines whether a star, after passing through the red giant stage, will compress itself into a white dwarf, a neutron star, or a black hole. (E) The mass of a star, after passing through the red giant stage, will determine whether it compresses itself into a white dwarf, a neutron star, or a black hole. D after passing through the red giant stage,说明带逗号的分词结构,既可以修饰主句主语,也可以修饰前面的分局,或者是就近修饰名词,这样的理解对吗?
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