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【单选题】
对三铰拱的合理拱轴线叙述正确的是A.
任意荷载下均为合理轴线
B.
合理轴线的跨度可以任意
C.
确定荷载且跨度给定时为合理轴线
D.
合理轴线时弯矩为零，但剪力不一定为零
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皮皮学刷刷变学霸
举一反三
【单选题】The everyday objects recorded and collected by the successors to the first explorers may reveal ______.
A.
where these objects came from
B.
how they rotted in a tropical climate
C.
a glimpse of the Incan civilization
D.
the vicissitude of Amazon cultures
【多选题】练习shadowing影子跟读的两种方式是?
A.
Phonemic shadowing
B.
Sentence shadowing
C.
Continued shadowing
D.
Phrase shadowing
【简答题】What is shadowing?
【单选题】What are the shadowing programs?
A.
The shadowing program is designed for students who are exploring their career options.
B.
The shadowing program is designed for students who are wishing to learn more about a particular field or position.
C.
Work shadowing programs allow you to follow an engineer through their day.
D.
All of the above
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