【判断题】成本预测的历史资料法包括高低法、直线回归法和因素预测法等。
【判断题】导游人员带团的原则是游客至上的原则.等距离交往的原则.个性化服务的原则。
【简答题】What can we learn from the literature of the tribes of the native Americans?
【单选题】What can we learn from the literature of the tribes of the native Americans?
A.
About the everyday life of the native Americans.
B.
About the arrival of Columbus.
C.
About the experience of the first European settlers.
D.
About the experience of those who died in the New England wilderness.
【判断题】求解图示超静定结构中各杆的内力时,除静力平衡方程外,还需建立3个补充方程。【图片】
【判断题】导游人员带团的原则是游客至上的原则.等距离交往的原则.个性化服务的原则。
【单选题】求解图示超静定结构中各杆的内力时,除静力平衡方程外,需建立的补充方程个数为( ) 。
【单选题】What became of Vinland after Thorfinn Karlsefni's party left?
A.
Hostile native tribes destroyed the buildings.
B.
It became a permanent colony a few years later.
C.
Historians made no further mention of it.
D.
It was sometimes used as a base for fishing.