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问题 判断题

慢性十二指肠炎可单独存在，也可与慢性胃炎、消化性溃疡等合并存在，其病变以降部为主。

答案

参考答案：错

选择题

若集合A={x|x2-1＜x，x∈R}，集合B满足A∩B=A∪B，则CRB为 [ ]

A．(-l，1)

B．(-∞，-1]∪[1，+∞)

C．(1，+∞)

D．(-∞，-1)∪(1，+∞)

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阅读理解
根据表格所提供信息，选择最佳答案。
Name
have /has
don’t（doesn’t）have
Paul
a basketball
a tennis racket
Gina
a backpack, a watch
a baseball bat
Jim
a basketball, a TV
a pair of baseball gloves
Kate
a clock
a watch, a ball
Tommy
a math book, CDs
a video cassette
小题1:Gina has ______, but she doesn’t have ______.
A．a watch; a ballB．a clock; a watch
C．a clock; a ballD．a watch; a baseball bat
小题2:Kate has ______, but she doesn’t have ______.
A．a watch; a ballB．a ball; a clock
C．a book; CDsD．a clock; a watch
小题3:Paul and Jim have ______.
A．booksB．CDsC．basketballsD．tennis rackets
小题4:Tommy has a ______ and some ______.
A．watch; ballsB．book; CDsC．baseball; CDsD．video cassette; books
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