问题
单项选择题
There is something wrong with our radar．All kinds of objects can’t be clearly（）within the definite range.
A.shown
B.expressed
C.appeared
D.displayed
答案
参考答案：D
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There is something wrong with our radar．All kinds of objects can’t be clearly（）within the definite range.
A.shown
B.expressed
C.appeared
D.displayed
参考答案：D