皮皮学,免费搜题
登录
搜题
【单选题】
Which of the following best describes the relationship of the final paragraph to the passage as a whole?
A.
The central idea is reinforced by the citation of evidence drawn from twentieth-century history.
B.
The central idea is restated in such a way as to form. a transition to a new topic for discussion.
C.
The central idea is restated and juxtaposed with evidence that might appear to contradic it.
D.
A partial exception to the generalizations of the central idea is dismissed as unimportant.
E.
Recent history is cited to suggest that the central idea’s validity is gradually diminishing.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】下列轴承中只能承受径向载荷的是( )。
A.
角接触球轴承
B.
推力球轴承
C.
滚针轴承
D.
圆锥滚子轴承
【单选题】下列轴承中,只能承受径向载荷、不能承受轴向载荷的轴承是( )。
A.
6208
B.
7208AC
C.
30208
D.
N208
【单选题】下列轴承中只能承受径向载荷的是( )
A.
深沟球轴承
B.
调心球轴承
C.
圆锥滚子轴承
D.
圆柱滚子轴承
【单选题】下列轴承中只能承受轴向载荷的是( )
A.
圆锥滚子轴承
B.
推力球轴承
C.
滚针轴承
D.
调心滚子轴承
【单选题】下列轴承中,只能承受轴向载荷的是______。
A.
深沟球轴承
B.
角接触球轴承
C.
推力球轴承
D.
圆锥滚子轴承
【判断题】这个是对的还是错的( )温水面团和好后需摊开冷却,再揉和成团。
A.
正确
B.
错误
【单选题】下列轴承中只能承受轴向载荷的是( )。
A.
角接触球轴承
B.
推力球轴承
C.
滚针轴承
D.
圆锥滚子轴承
【判断题】( ) 温水面团和好后需摊开冷却,再揉和成团
A.
正确
B.
错误
【单选题】下列轴承中,只能承受径向载荷载荷的是______。
A.
调心滚子轴承
B.
角接触球轴承
C.
调心球轴承
D.
圆柱滚子轴承
【简答题】2层楼梯第2跑梯段水平投影长度为 mm、踏步数为 、梯井宽度为 mm
相关题目: