阿摩線上測驗
53. What is this passage mainly about?
(A) Steps to get rid of bedbugs.
(B) Ways to use foggers correctly.
(C) The ineffectiveness of bug bombs.
(D) The problems caused by insects.
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統計： A(27), B(64), C(278), D(30), E(0) #1945528
統計： A(27), B(64), C(278), D(30), E(0) #1945528
