49. The third group of volunteers in Professor Kramer’s study ______.
(A) were not very active
(B) got plenty of exercise
(C) went for long walks
(D) did stretching exercises

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統計： A(264), B(38), C(13), D(17), E(0) #2030922

詳解 (共 3 筆)

#3737603
volunteers 自願參加者，志願者...
(共 382 字，隱藏中）
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2
0
#3707924
不是很活躍
1
0
#3801264
The third group cons...
(共 94 字，隱藏中）
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0
0