单项选择题

According to the passage, the railroad industry preferred steel to iron because steel was （）

A．cheaper and more plentiful
B．lighter and easier to mold
C．cleaner and easier to mine
D．stronger and more durable

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单项选择题

According to the passage, where were large deposits of iron uncovered（）

A．In Pittsburgh.
B．In the Mesabi Range.
C．Near Lake Michigan.
D．Near Lake Erie.

单项选择题

What's the author's main purpose in the passage（）

A．To interpret Emily Dickinson's eccentric behavior
B．To promote the popular myth of Emily Dickinson
C．To discuss Emily Dickinson's failed love affair
D．To describe the religious climate in Emily Dickinson's time