单项选择题

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单项选择题
How was cola syrup made into a soft drink
A．By mixing it with special oils.
B．By heating it.
C．By combining it with different flavors.
D．By adding soda water.
单项选择题
Who is John Pemberton
A．He sold cola to doctors.
B．He was a drugstore clerk.
C．He developed the cola syrup.
D．He suffered from severe headaches.
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