题目内容：
White-collar workers accounted for more than half of the labor force by the end of the 20th century.
参考答案：
答案解析：
单选题：White-collar workers accounted for more than half of the la
- 题目分类：英语六级
- 题目类型：单选题
- 查看权限：VIP
What is the author's regret about many American universitie
What is the author's regret about many American universities?A．They show inade
What does the author think of texting?
What does the author think of texting?A．It facilitates exchange of ideas among
Though the Swedish model appears workable for most American
Though the Swedish model appears workable for most American parents, it may not
第38题________
第38题________
第32题________
第32题________