题目内容：
Which of the following can be used as the explanation of the word “screen” in Para.7 and 12?
A.To show a film/movie, etc.in a cinema/movie theater or on television.
B.To check something to see if it is suitable or if you want it.
C.To hide or protect something or somebody by placing a thing in front of or around them.
D.To examine a person in order to find out if he has a particular disease.
参考答案：