42. According to the passage, when people experiences gastrointestinal upset with no obvious
physical cause, _______.
(A) they had better try to think positively
(B) they might be under some kind of pressure or feel anxiety
(C) they probably need to have a thorough checkup of his brain
(D) the intestinal pain or discomfort is simply imagined
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統計: A(4), B(209), C(16), D(11), E(0) #3129269
統計: A(4), B(209), C(16), D(11), E(0) #3129269