6. Certain foods are common causes of ________. For example, dairy products contain sugar lactose, which
causes gastrointestinal gas.
(A) flatulence
(B) hemorrhage
(C) vertigo
(D) cramp
答案:登入後查看
統計: A(343), B(48), C(27), D(36), E(0) #2363045
統計: A(343), B(48), C(27), D(36), E(0) #2363045