People in New York don’t have time to care about other people.[音频]
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People in New York are always eating as they walk in the streets.[音频]
A. 对
B. 错
People in New York are very rude[音频]
A. 对
B. 错
New Yorkers always talk about money and how much things cost.[音频]
A. 对
B. 错
用叠加法求梁的变形需满足的前提条件是( )。
A. 等截面
B. 小变形
C. 纯弯曲
D. 各项同性
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