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【判断题】
多点(两点或三点) 自位支承 支承,实际上 限制几个 (两点或三点) 自由度。A.
正确
B.
错误
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举一反三
【判断题】Lincoln Center for the Performing Arts and Columbia University are both located on Broadway.
A.
正确
B.
错误
【简答题】A．Driving to New York. B．Visit the Lincoln Center. C．Go together with his roommate. D．Move to Manhattan.
【判断题】燃料电池电动汽车实质上是电动汽车的一种,在车身、动力传动系统、控制系统等方面,燃料电池电动汽车与普通电动汽车基本相同, 主要区别在于动力电池的工作原理不同。
A.
正确
B.
错误
【单选题】Why does the professor mention the Kennedy Center and Lincoln Center?
A.
To give examples of institutions that benefit from corporate support
B.
To illustrate why some artists oppose the building of cultural centers
C.
To show how two centers were named after presidents who supported the arts
D.
To name two art centers built by the government during the Depression
【简答题】CSS中“交集”选择符由两个选择符直接连接构成,其结果是选中两者各自元素范围的( )
【简答题】直接滴定法测定食品还原糖的原理是什么?为什么必须在沸腾的条件下进行滴定?
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