单项选择题

A．The elevation of the datum plane is 0.7 meters shorter than that of 1975.
B．Due to global warming, the snow and ice at the top has been melting.
C．Mount Qomolangma is the world’’s tallest peak on the earth.
D．Surveying technologies have improved dramatically in 20 years.
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单项选择题
A．She is a US actress.B．She is a US speaker.C．She is the sponsor of a US talk show.D．She is the hostess of a US talk show.
A．She is a US actress.
B．She is a US speaker.
C．She is the sponsor of a US talk show.
D．She is the hostess of a US talk show.
单项选择题
A．It will become smaller.B．It will become safer.C．It will become more economical.D．It will become faster.
A．It will become smaller.
B．It will become safer.
C．It will become more economical.
D．It will become faster.
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