单项选择题

Iron replaced stone and timber in the building of bridges because iron was considered ______.

A．more beautiful
B．new and modern
C．much stronger
D．easier to transport
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单项选择题
What does the passage mainly discuss
A．Advances in iron processing in the eighteenth and nineteenth centuries.
B．The effects of the Industrial Revolution on traditional architectural styles.
C．Advantages of stone and timber over steel as building materials.
D．The evolution of the use of iron in architecture.
单项选择题
Letizia used to be a news anchor who was ______.
A．world-famous
B．frank
C．serious
D．capable
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