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【单选题】
牵引车传动系统具有的功能之一是( )。
A.
降低转速,增加扭矩
B.
降低转速,降低扭矩
C.
增加转速,增加扭矩
D.
增加转速,降低扭矩
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参考答案:
举一反三
【简答题】The party’s power base was c_________ to one province.
【单选题】From the 1860s to the 1920s,the Republican Party dominated the political scene and from the 1930s to the 1970s()was in power most of the time.
A.
the Democratic Party
B.
the Republican Party
C.
no party
D.
None of the above.
【单选题】Which party is in power at present?
A.
The Conservative Party
B.
The Labor Party
C.
The Liberal Democratic Party
D.
The Scottish National Party
【单选题】A ______ with the party in power will have a bad influence on the social stability.
A.
constitution
B.
construction
C.
collision
D.
connection
【单选题】The American political system is based on a two-party system. In America, to be the party in power, the party has to________.
A.
represent the interests of the majority
B.
win the congressional election and become the majority in congress
C.
win the presidential election
D.
outnumber the rival party members
【单选题】下列__( )_不属于双针床经编机的四大主要机构。
A.
牵拉卷取机构
B.
送经机构
C.
传动装置
D.
成圈机构
【判断题】韶山7型电力机车采用了滚动抱轴承。
A.
正确
B.
错误
【简答题】女性,42岁。撞伤后胸痛、呼吸困难。咯血2小时。患者2小时前在乘坐高速行驶的汽车时,因紧急刹车,右胸撞击在汽车的铁杆上,当即感到右前胸疼痛难忍,严重呼吸困难,伴咯血数口,随即送来医院。既往体健,无传染病病史。无手术、外伤史及药物过敏史。查体:T37.1℃,P120次/分,R30次/分,BP90/60mmHg。神志清楚,口唇发绀,气管明显向右偏移,右胸稍膨隆,皮肤瘀斑,触痛明显,颈、胸部可触及广泛皮...
【单选题】下面哪种是测定水泥比表面积的标准方法()。
A.
勃氏法
B.
水筛法
C.
雷氏法
D.
李氏瓶法
【单选题】韶山7型电力机车采用了( )抱轴承
A.
径向
B.
滚动
C.
滑动
D.
轴向
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