6. Some body fat is essential to stay healthy, with a range stretching up to 25 percent of body weight for women and around 15 percent for men.
(A) reaching
(B) springing
(C) amazing
(D) searching

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統計: A(98), B(9), C(0), D(3), E(0) #1219756

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#2138736
essential必要的;基本的    ...
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