问题
选择题
The machine is designed to people rec
ycle wastes to a great degree but the result still remains to be seen. [ ]
A. aid
B. help
C. assist
D. improve
答案
答案：B
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The machine is designed to people recycle wastes to a great degree but the result still remains to be seen. [ ]
A. aid
B. help
C. assist
D. improve
答案：B