问题
选择题
On coming into the kitchen, mother found the soiled (污染的) dishes piled _____. [ ]
A. at risk
B. at random
C. at length
D. at ease
答案
答案：B
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On coming into the kitchen, mother found the soiled (污染的) dishes piled _____. [ ]
A. at risk
B. at random
C. at length
D. at ease
答案：B