To indicate how climbers communicated．,To show that cli-找考题网

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．Two.B．Three.C．Four.D．Five.

A．Two.
B．Three.
C．Four.
D．Five.

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