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【单选题】
受横向工作载荷的普通紧螺栓联接中，螺栓所受的载荷为预紧力；受横向工作载荷的铰制螺栓联接中，螺栓所受的载荷为工作载荷；受轴向工作载荷的普通松螺栓联接中，螺栓所受的载荷是工作载荷；受轴向工作载荷的普通紧螺栓联接中，螺栓所受的载荷是（）。A.
工作载荷
B.
预紧力
C.
工作载荷+预紧力
D.
工作载荷+残余预紧力
E.
残余预紧力
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【简答题】The commander ordered that we (withdraw) ______ as soon as possible.
【简答题】The order from the commander was that the troops ______ (立即开拔去前线).
【单选题】It is usual to classify types of production as job production, batch production and flow production. In job production, products are supplied to the special requirements of a customer, and the whole p...
A.
displayed at different locations
B.
produced by different production methods
C.
designed by different specialists
D.
sold at different markets
【简答题】The commander ordered his troops stationed on the top of the hill. A B C D
【单选题】The commander of a rescue unit designated to co-ordinate search and rescue operations within a specified area is the（）.
A.
General commander
B.
Commander general
C.
Search commander
D.
On-scene commander
【单选题】The attainable production points on a production possibility curve are:
A.
the horizontal and vertical intercepts.
B.
the points along the production possibilities frontier.
C.
the points outside the area enclosed by the production possibilities frontier.
D.
the points along and inside the production possibility frontier.
【多选题】The production can be generally classified into three different kinds of production types:
A.
Single production
B.
Job production
C.
Batch production
D.
Mass production
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