42. Experts say that sleeping about eight hours each night is___________ for
adults to maintain good health
(A)superior
(B)sufficient
(C)suspect
(D)suspicious
答案:登入後查看
統計: A(39), B(279), C(40), D(36), E(0) #1784694
統計: A(39), B(279), C(40), D(36), E(0) #1784694