The main idea of the second paragraph is______.
A. diversity of the workforce has its disadvantages
B. besides new opportunities, the changing workforce also contain challenges
C. the low educational levels of immigrants is a challenging problem
D. America had better face the problem of declining skills or it will suffer
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One characteristic of the new workforce is______.
A. the low educational level of it compared to previous years
B. the large share of Mexican immigrants
C. the low educational level of its immigrants
D. a gap between educational levels in certain immigrants
Which of the following is the best title of the text?
A. How to have a successful diet
B. How to resist temptation
C. Factors affecting dieting
D. Rules to follow for dieting