单项选择题

A．Nineteenth-century sea captains.
B．The development of the steamship.
C．The economic importance of sailing ships.
D．Employment in the fishing and whaling industries.
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单项选择题
A．He wants to review for tomorrow.B．He’s nervous but believes he will be better tomorrow.C．He’s nervous about his presentation because he’s unprepared.D．He left his presentation on the window edge but he’ll get it tomorrow.
A．He wants to review for tomorrow.
B．He’s nervous but believes he will be better tomorrow.
C．He’s nervous about his presentation because he’s unprepared.
D．He left his presentation on the window edge but he’ll get it tomorrow.
单项选择题
A．Eliminating the original vegetation from the building site.B．Marking the houses in an area similar to one another.C．Deciding where a house will be built.D．Surrounding a building with wild flowers and plants.
A．Eliminating the original vegetation from the building site.
B．Marking the houses in an area similar to one another.
C．Deciding where a house will be built.
D．Surrounding a building with wild flowers and plants.
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