单项选择题

A．Two centuries.
B．300 years ago.
C．In 1691.
D．In the 16th century.
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问答题
S2. What does the author imply when he says that millions of gallons of water must be consumed
单项选择题
A．To cook something for him.B．To wait for him.C．To give him advice.D．To have a meal and drink by himself.
A．To cook something for him.
B．To wait for him.
C．To give him advice.
D．To have a meal and drink by himself.
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