【单选题】【消耗次数:1】
Not onlythe students______________ the teachers are volunteers.
but for
but also
however
but to
参考答案:
复制
纠错
相关题目
【判断题】 The teachers tried to __convince____ these students that they could solve the complicated problem, however, they just didn’t see the point.
①  正确
②  错误
【单选题】 A university ____ of teachers, administrators and students.
①  consists
②  composes
③  includes
④  contains
【判断题】 判断线上的内容是否正确:The teachers tried to __convince____ these students that they could solve the complicated problem, however, they just didn’t see the point.
①  正确
②  错误
【单选题】 Not only the teacher but also the students _______ smiling.
①  is
②  are
③  was
④  be
【单选题】 27. For quite _____ students,their teachers advice is more important than _____ of their parents.
①  few;one
②  afew;that
③  alittle;some
④  alot;many
【单选题】 Much importance should be ( ) to physical and mental health of students, which, however, is often neglected.
①  attached
②  detached
③  stressed
④  thrown
【简答题】 Translate the following sentence into ChineseAt the meeting, they discussed how to keep the lines of communication open between teachers and students.
【单选题】 They are not only teachers __________ our friends
①  but for
②  but also
③  however
④  whoever
【单选题】 Nancy was the only woman to()the experiment and was among the few volunteers who died from it.
①  participate in
②  shared in
③  joined in
④  enter into
【单选题】 Our teachers are very nice. What about __________ ?
①  yours
②  your
随机题目
【判断题】 求最小值问题的目标函数值是各分枝函数值的下界。()
①  正确
②  错误
【判断题】 可行解集有界非空时,则在极点上至少有一点达到最优解。()
①  正确
②  错误
【单选题】 对偶单纯形法的最小比值规划则是为了保证()。
①  使原问题保持可行
②  逐步消除对偶问题不可行性
③  使原问题有最优解
④  使对偶问题保持可行
【单选题】 线性规划无可行解是指()。
①  用大M法求解时,最优解中还有非零的人工变量
②  进基列系数非正
③  有两个相同的最小比值
④  可行域无界
【单选题】 线性规划具有无界解是指()。
①  可行解集合无界
②  有相同的最小比值
③  存在某个检验数λk>0且aik≤0(i=1,2,…,m)
④  最优表中所有非基变量的检验数非零
【单选题】 下例错误的说法是()。
①  标准型的目标函数是求最大值
②  标准型的目标函数是求最小值
③  标准型的常数项非正
④  标准型的变量一定要非负
【单选题】 设线性规划的约束条件为则基本可行解为()。
①  (0,0,4,3)
②  (3,4,0,0)
③  (2,0,1,0)
④  (3,0,4,0)
【单选题】 有3个产地4个销地的平衡运输问题模型具有特征()。
①  有7个变量
②  有12个约束
③  有6约束
④  有6个基变量
【单选题】 要求不低于目标值,其目标函数是()。
①  maxZ=d
②  -maxZ=d+
③  minZ=d
④  -minZ=d+
【单选题】 线性规划可行域的顶点一定是()。
①  基本可行解
②  非基本解
③  非可行解
④  最优解