单项选择题

A．How to care for precious metals.
B．A standard unit for measuring weight.
C．The value of precious metals.
D．Using the metric system.
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单项选择题
A．They’re going to take the bus to the airport.B．They’re going to make a phone call to the Browns.C．They’re going to meet the Browns at the airport.D．They’re going to take the Browns to the airport.
A．They’re going to take the bus to the airport.
B．They’re going to make a phone call to the Browns.
C．They’re going to meet the Browns at the airport.
D．They’re going to take the Browns to the airport.
单项选择题
A．The post office.B．Lintown.C．A gas station.D．A map store.
A．The post office.
B．Lintown.
C．A gas station.
D．A map store.
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