阅读短文，回答题。According
单选题2011-09-25What is the purpos
单选题2011-09-25One of the big dif
单选题2011-09-25According to the p
单选题2011-09-25Which of the follo
单选题2011-09-25阅读短文，回答题。According
单选题2011-09-25Which of the follo
单选题2011-09-25Which of the follo
单选题2011-09-25Why does the autho
单选题2011-09-25Which of
单选题2011-09-25阅读短文，回答题。According
单选题2011-09-25What is the main i
单选题2011-09-25According to the p
单选题2011-09-25Which of the follo
单选题2011-09-25The following are
单选题2011-09-25阅读材料，回答题。Which of
单选题2011-09-25She must have been
单选题2011-09-25The girl's voice w
单选题2011-09-25His plan is carefu
单选题2011-09-25Everyone is surpri
单选题2011-09-25