Nowadays may American women tend to do better than men. They left the secretarial pool to become secretaries of state, supreme court justices or astronauts. They now earn not only more college degrees but more advanced degrees than men, and make up half of the US workforce.
【正确答案】：
女性现在获得的大学学位不仅比男性多，而且获得更高级别学位的人数也多于男性。她们占美国一半的劳动力。 
【题目解析】：女性现在获得的大学学位不仅比男性多，而且获得更高级别学位的人数也多于男性。她们占美国一半的劳动力。 注意make up，not only, but(also)等词组的用法。