单项选择题
Our latest customer ______ survey reveals some problems in the after-sales service area, especially the lack of a telephone hotline.
A. satisfying
B. satisfied
C. satisfaction
D. satisfactory
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单项选择题
151()
A. how
B. that
C. what
D. whether
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单项选择题
152()
A. defended
B. refused
C. incurred
D. conveyed
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