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【单选题】
设计键连接的几项主要内容是:a按轮毂长度选择键的长度,b按要求选择键类型,c按轴径选择键的截面尺寸,d进行必要的强度校核。具体设计时一般顺序为______。A.
b-d-c-a
B.
b-c-a-d
C.
a-c-b-d
D.
c-d-b-a
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皮皮学刷刷变学霸
举一反三
【单选题】Many foreigners in England have considerable difficulty making themselves ______.
A.
to understand
B.
to be understood
C.
understood
D.
understand
【单选题】The students' criteria for selecting majors today have much to do with ______.
A.
their understanding of the contributions of others
B.
their own interpretations of the courses
C.
the influences of their instructors
D.
the financial goals they seek in life
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