【单选题】【消耗次数:1】
We saw so many ____ flowers when we climbed the mountain.
artificial
wild
manual
fake
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相关题目
【单选题】 When we drove to the country, we saw many _____.
①  herds of cattles
②  herds of catt
③  herd of cattle
④  herd of cattles
【判断题】 When we got down to the job we met many difficulties.划线部分应该翻译成“着手做”
①  正确
②  错误
【单选题】 These plastic flowers look so ___ that many people think they are real.
①  beautiful
②  natural
③  artificial
④  similar
【单选题】 These plastic flowers look so ________ that many people think they are real.
①  natural
②  beautiful
③  artificial
④  similar
【单选题】 We went on a(n) ____ to the mountain yesterday.
①  excursion
②  trip
③  tour
④  travel
【单选题】 When we speak to people, we should be ______.
①  as polite as possible
②  as polite as possibly
③  as politely as possible
④  as politely as possibly
【单选题】 We often compare children ______ flowers.
①  with
②  . to
③  in
【单选题】 2. When we speak to people, we should be ___.
①  as polite as possible
②  as polite as possibly
③  as politely as possible
④  as politely as possibly
【单选题】 When we arrived at the airport, we found our flight ________.
①  cancelled
②  had cancelled
③  had been cancelled
④  has been cancelled
【单选题】 We are interested in the weather because it __________ us so directly --- what we wear, what we do, and even how we feel.
①  benefits
②  affects
③  guides
④  effects
随机题目
【判断题】 平面一般力系平衡的解析条件是所有各力在两个任选的坐标轴上的投影的代数和都等于零。
①  正确
②  错误
【判断题】 平面一般力系的合力是主矢。
①  正确
②  错误
【判断题】 平面汇交力系合力的投影一定大于分力在这个轴上的投影。
①  正确
②  错误
【判断题】 平面一般力系可简化为一个合力。
①  正确
②  错误
【单选题】 平面汇交力系平衡时,合力是()
①  R=0
②  R0
③  R0
④  不确定
【单选题】 既限制物体任何方向运动,又限制物体转动的支座称( )支座。
①  固定铰
②  可动铰
③  固定端
④  光滑面
【单选题】 利用平面汇交力系的平衡条件,最多可以求解()个未知力。
①  1
②  2
③  3
④  4
【单选题】 平面一般力系是一个平衡力系时,简化结果为()
①  主矢主矩均为零
②  一个合力
③  一个力偶
【单选题】 力与坐标轴垂直时,力在该轴上的投影是()
①  0
②  它本身
③  不确定
④  它的相反数
【判断题】 一般来说,同一个力对不同点之矩是相同的。
①  正确
②  错误