单项选择题

A．To indicate how climbers communicated.
B．To show that climbers enjoyed many comforts.
C．To show that modern telephones work at high altitudes.
D．To emphasize how small some equipment had become.
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单项选择题
A．By writing a personal check.B．By changing them to their personal account.C．By paying in cash.D．By using a store credit card.
A．By writing a personal check.
B．By changing them to their personal account.
C．By paying in cash.
D．By using a store credit card.
单项选择题
A．Walk around the apartment for dangerous signs.B．Check the water and electricity to see if they are working.C．Make sure there are good locks on all the windows and doors.D．Talk to other people who rent apartments in the same building.
A．Walk around the apartment for dangerous signs.
B．Check the water and electricity to see if they are working.
C．Make sure there are good locks on all the windows and doors.
D．Talk to other people who rent apartments in the same building.
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