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更多“By the 1840s the influx of pioneers to the Northwest, and the flood of prospectors to California aft…”相关的问题
The old man said that this sad story may happen in ______.
A．the 1840's
B．the 1840s'
C．1840s
D．1840s'
The aim of the voyages Maury was responsible for in the 1840s was______.
A．to make some sounding experiments in the oceans
B．to collect samples of sea plants and animals
C．to estimate the length of cable that was needed
D．to measure the depth of the two oceans
The aim of voyages Maury encouraged in the 1840s was ______.
A．to make some sound experiments in the oceans
B．to collect samples of sea plants and animals
C．to estimate the length of cable that was to be made
D．to measure the depths of two oceans
The aim of the voyages Maury was responsible for in the 1840s was ______ .
A．to make some sounding experiments in the oceans
B．to collect samples of sea plants and animals
C．to estimate the length of cable that was needed
D．to measure the depths of the two oceans
The aim of the voyages Maury was responsible for in the 1840s was to ______.
A．make some sounding experiments in the oceans
B．collect samples of sea plants and animals
C．estimate the length of cable that was needed
D．measure the depths of the two oceans
The aim of the voyages Maury was responsible for in the 1840s was ________.
A) to make some sounding experiments in the oceans
B) to collect samples of sea plants and animals
C) to estimate the length of cable that was needed
D) to measure the depths of the two oceans
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