【单选题】【消耗次数:1】
There were some ____ flowers on the table.
artificial
unnatural
false
unreal
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相关题目
【单选题】 In a room above the store, where a party __________,some workers were busily setting the table.
①  was to be held
②  has been held
③  will be held
④  is being held
【单选题】 There [填空] some chopsticks on the table.
①  are
②  is
③  have
④  was
【单选题】 He’s going to [填空] her some flowers.
①  buy
②  bought
③  buying
④  offering
【单选题】 We looked for a table to sit down, but they were all ____.
①  reserved for
②  engaged in
③  used up
④  taken up
【单选题】 An experiment suggests that flowers have some____________ ways of keeping time.
①  modern
②  mysterious
③  military
④  mixed
【单选题】 I ___remember to send my mother some flowers. Its her birthday tomorrow.
①  must
②  have to
③  could
【单选题】 Some scientists____________ that flowers open at particular times because their internal clocks tell them to do so.
①  receive
②  make
③  believe
④  talk
【单选题】 There were some chairs left over[] everyone had sat down.
①  when
②  until
③  that
④  where
【单选题】 The inspector ____ his fingers over the sheet of newspaper. There were some marks on the surface of the paper.
①  turned
②  set
③  held
④  ran
【单选题】 There is [填空] on the table.
①  two cups of water
②  some waters
③  some water
④  any waters
随机题目
【单选题】 开式齿轮传动的主要失效形式是()
①  轮齿疲劳折断
②  齿面磨损
③  齿面胶合
④  齿面点蚀
【单选题】 一个齿轮上的圆有()
①  齿顶圆和齿根圆
②  齿顶圆、分度圆、基圆和齿根圆
③  齿顶圆、分度圆、基圆、节圆、齿根圆
④  基圆、节圆、齿根圆
【单选题】 在螺纹联接中最常用的螺纹牙型是()
①  锯齿形螺纹
②  矩形螺纹
③  三角形螺纹
④  梯形螺纹
【单选题】 渐开线的基圆越大,则()
①  分度圆越大
②  压力角相同点的曲率半径越大
③  模数越大
④  节圆越大
【判断题】 正是由于过载时产生“打滑”,故带传动对传动系统具有保护作用。
①  正确
②  错误
【判断题】 标准直齿圆柱齿轮传动的实际中心距恒等于标准中心距。
①  正确
②  错误
【判断题】 平面定轴轮系中的各圆柱齿轮的轴线互相平行。
①  正确
②  错误
【判断题】 所谓惰轮,是指在轮系中不起作用的齿轮。
①  正确
②  错误
【判断题】 基圆以内无渐开线。
①  正确
②  错误
【单选题】 带传动中传动比较准确的是()
①  平带
②  V带
③  圆带
④  同步带