問題詳情
II. Grammar and Structure: Choose the BEST answer to complete each sentence.11. These researchers started to isolate variables of interest by matching participants in each of thegroups on all relevant variables except for the one ____.
(A) at will
(B) in question
(C) at length
(D) at ease
(E) on balance
參考答案
答案：B
難度：適中0.428571
統計：A(2),B(9),C(0),D(2),E(2)