单项选择题

Questions 23 to 25 are based on the conversation you have just heard. what changes did the reinforced concrete bring to the architecture industry

A．It made the buildings solid and fireproof.
B．It decreased workers’ labor intensity.
C．It shortened the construction period.
D．It beautified the outlook of the buildings.
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单项选择题
A．A college campus.B．A beautiful park.C．An art museum.D．An old building.
A．A college campus.
B．A beautiful park.
C．An art museum.
D．An old building.
单项选择题
Student test scores have become the key measure of teachers’performance due to ______.
A．the lack of well-accepted standards
B．the absence of federal funding
C．strong theoretical support
D．past successful experience
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