47. According to the passage, estrogen may (A) help to prevent breast cancer (B) help to prevent heart disease (C) help to promote osteoporosis (D) help to fight endometrial cancer

50. Which of the following statements CANNOT be supported by information found in the passage？ (A) Estrogen is chiefly a female hormone and testosterone is chiefly a male hormone. (B) All males began life as females. (C) Testosterone can be used to alter the sex of post pubescent females. (D) Estrogen therapy may help to increase the bone density of women with osteoporosis. 建國私醫插大英文 ∼ 建國 7 ∼

47. According to the passage, estrogen may

(A) help to prevent breast cancer
(B) help to prevent heart disease

(C) help to promote osteoporosis
(D) help to fight endometrial cancer

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