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1.        The rules that govern political contributions are less stringent in local elections than they are in national elections because they typically involve smaller amounts of money and present less opportunity for abuse.

(A) The rules that govern political contributions are less stringent in local elections than they are in national elections because they typically involve smaller amounts of money and present less opportunity for abuse.

(B) Because they typically involve smaller amounts of money and present less opportunity for abuse, the rules that govern political contributions are less stringent in local elections than the rules are less stringent in local elections than the rules are in national elections.

(C) The rules that govern political contributions are less stringent in local elections than national elections because they typically involve smaller amounts of money and present less opportunity for abuse.

(D) Because local elections typically involve smaller amounts of money and present less opportunity for abuse than national elections, the rules that govern local political contributions are less stringent than national contributions.（E）

(E) The rules that govern political contributions are less stringent in local elections than they are in national elections because local elections typically involve smaller amounts of money and present less opportunity for abuse.

答案里的they是不是换成those更好啊。用they的话总觉得有点问题，请NN给解释一下我的感觉对马？谢谢

1.        The use of chemical pesticides in this country is equally extensive or more so than ten years ago.

(A) equally extensive or more so than ten years ago

(B) equal to or more extensive than ten years ago

(C) as extensive as ten years ago or more

(D) equal to, if not more, than ten years ago（E）

(E) as extensive as it was ten years ago, if not more so

同样的道理我觉得这里E里面的it也是不太好。