【单选题】Which of the following is the Chief Officer's responsibility?
A.
The chief officer is in charge of life-saving appliances.
B.
The chief officer is in charge of medical duty.
C.
The chief officer is in charge of updating charts and publications.
D.
The chief officer is responsible for ensuring the safety of the ship's workplace and equipment.
【简答题】---What’s the chief ______ of the world thisyear? ---I think the Twin- Tower wasdestroyed. A.business B. matter C. D. affair
【判断题】1 )同步电机的主磁场与电枢反应磁场均以同步转速同向旋转,在空间保持相对静止,所以定、转子间没有电磁转矩作用。
【单选题】According to Paragraph 3, some observers believe that______.
A.
Tesla's founder will not sell his company
B.
Apple may take Tesla over in the near future
C.
Tesla and Apple may cooperate and develop iCar
D.
Tesla will be the leading corporation of driverless cars
【单选题】It can be inferred from Paragraph 2 that______.
A.
Tesla's electric car will become mainstream in the market
B.
Tesla will make a great fortune in 2015 thanks to its new model
C.
it may take a while for Tesla to recover from the battery accidents
D.
Tesla pursues environmentally-friendly cars rather than huge profits
【简答题】一个学校有A、B两个平行的留学生初级班,两班汉语读写课的考试成绩如下: A班:71 74 76 77 77 78 79 80 81 82 83 B班:50 65 68 75 77 78 80 85 88 92 100.请计算这两个班的平均数、中位数和全距。