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20£®ÌýµÚ6¶Î²ÄÁÏ£¬»Ø´ðµÚ6ÖÁ7Ì⣮6£®What is the purpose of the man's call£¿
A£®To confirm an appointment
B£®To cancel an appointment
C£®To postpone an appointment
7£®When will the woman go to the clinic£¿
A£®On July 16th
B£®On July 20th
C£®On July 21st£®
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