阿摩線上測驗
15. The guidelines were revised to ensure that all procedures ______ strictly followed, lest any deviation ______ the reliability of the findings.
(A)were / affected
(B)be / affect
(C)should be / affected
(D)are / affect
答案：登入後查看
統計： A(0), B(3), C(0), D(0), E(0) #3866629
統計： A(0), B(3), C(0), D(0), E(0) #3866629
