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By the 1840s the influx of pioneers to the Northwest, and the flood of prospectors to California after 1848 had created an increasing demand for mail delivery to and from the East. (翻译)

By the 1840s the influx of pioneers to the Northwest, and the flood of prospectors to California after 1848 had created an increasing demand for mail delivery to and from the East. （翻译)

提问人：网友wh139634 发布时间：2022-03-14

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第1题

By the 1840s the influx of p________ to the Northwest, and the flood of prospectors to Cal

3. By the 1840s the influx of p________ to the Northwest, and the flood of prospectors to California after 1848 had created an increasing demand for mail delivery to and from the East. (--the first people to go to a particular area in order to live and work there)

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第2题

The old man said that this sad story may happen in ______.A．the 1840'sB．the 1840s'C．1840sD

The old man said that this sad story may happen in ______.

A．the 1840's

B．the 1840s'

C．1840s

D．1840s'

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第3题

The aim of the voyages Maury was responsible for in the 1840s was______.A．to make some sou

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

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第4题

【判断题】During the 1830s and 1840s，many northern Europeans and Irish immigrants came to America．

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第5题

The Rhynodine receptor on the longitudinal tubule of the cardiac musle controls the Ca2+ influx from extracellular fluid.

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第6题

The aim of voyages Maury encouraged in the 1840s was ______.A．to make some sound experimen

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

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第7题

The aim of the voyages Maury was responsible for in the 1840s was ______ .A．to make some s

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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第8题

The aim of the voyages Maury was responsible for in the 1840s was to ______.A．make some so

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

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第9题

The aim of the voyages Maury was responsible for in the 1840s was ________.A) to ma

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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