45. Which of the following is closest in meaning to the word “monitor” in line 10, as it is used in
this passage?
(A) exchange
(B) observe
(C) comment
(D) maintain
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統計: A(4), B(14), C(4), D(2), E(0) #1216144
統計: A(4), B(14), C(4), D(2), E(0) #1216144