多项选择题

Check-in service includes ____________.
A、arrange seats for passengers
B、carry out personal search
C、check baggage
D、issue boarding pass

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单项选择题

打桩的设备中，柴油锤一般最宜用于打木桩、钢板桩；不适于在过硬或过软的土中打桩。
A、正确
B、错误

AInwick Garden is the most poisonous park in the world.

答案：正确