新GRE考試閱讀同步習題
編輯點評： 新GRE閱讀考試考察大家的方面較多，除了大家需要擁有一定的.詞彙量以外，還需大家在解題的時候能夠迅速瞭解出題者的意圖，這就需要大家充分發揮自己的邏輯理解能力和推理能力，大家可以利用下文的新GRE閱讀短文練習進行練習。
Although spinach is rich in calcium, it also contains large amounts of oxalic acid, a substance that greatly impedes calcium absorption by the body. Therefore, other calcium-containing foods must be eaten either instead of or in addition to spinach if a person is to be sure of getting enough calcium.
Which of the following, if true, most seriously weakens the argu-ment above?
Rice, which does not contain calcium, counteracts the effects of oxalic acid on calcium absorption.
Dairy products, which contain even more calcium than spinach does, are often eaten by people who eat spinach on a regularbasis.
Neither the calcium nor the oxalic acid in spinach is destroyed when spinach is cooked.
Many leafy green vegetables other than spinach that are rich in calcium also contain high concentrations of oxalic acid.
Oxalic acid has little effect on the body s ability to absorb nutrients other than calcium.
答案：E
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