单项选择题

Amsterdam -- New York
Twice Weekly
Comfortable by Airbus-310 in First, Business or Economy Class

A. There are one flight every two weeks.
B. Two kinds of classes are available.
C. There are two flights every week.
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单项选择题
Do not expose the unit to rain or moisture.
A. This equipment should be placed in a dry place.
B. It does not matter if the unit is cleaned with a wet mop.
C. It can only be used in a sunny day.
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