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【判断题】
石油钻机的游动系统,采用由天车、和钢丝绳组成的复滑轮系统,可减小钢丝绳的直径,提高绞车滚筒的转速,从而减小传动系统的传动比,但起升系统的效率降低。A.
正确
B.
错误
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【简答题】III. Listen conversation2 and decide whether the following statements are true (T) or false (F). 1. The title of Sandy’s composition is “The University Campus Should Be Open to Tourists.” 2. Joe tells...
【判断题】Joe tells Sandy that at the very beginning, she can state her own opinion.
A.
正确
B.
错误
【简答题】III. Listen to conversation2 and decide whether the following statements are true (T) or false (F). The title of Sandy’s composition is “The University Campus Should Be Open to Tourists.” Joe tells Sa...
【简答题】Listen again and decide whether the following statements are true (T) or false (F). 1.___________ The title of Sandy’s composition is “The University Campus Should Be Open to Tourists.” 2.___________ ...
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