单选题
The grapes are harvested on a date that ______.
A、
may vary.
B、
is traditionally set.
C、
depends on the official approval.
D、
is determined by availability of pickers.
【正确答案】
A
【答案解析】
[详细解答] 原文中有“…and when their sugar content is at the right level,they are harvested carefully by hand.”由此可知,收获的具体时间由自然规律决定,每年会在一定范围内变动。葡萄的成熟不会受人们的风俗、好恶影响,更无需官方的批准。
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