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【简答题】
请用sein的第一虚拟式填空 Er sagt, dass Maria krank .
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举一反三
【单选题】Copper alloys are generally used for their
A.
Low thermal conductivity
B.
High electrical conductivity
C.
Low electrical conductivity
D.
Low mass density
【单选题】对于下列MATLAB程序的运行结果,正确的是() A=[1,2,3;4,5,6;7,8,9]; B=A(:,end:-1:1)
A.
B= 1 2 3 4 5 6 7 8 9
B.
B= 7 8 9 4 5 6 1 2 3
C.
B= 3 2 1 6 5 4 9 8 7
D.
B= 9 8 7 6 5 4 3 2 1
【简答题】Thermoplastic plastics are generally best for which of the following type of service conditions? A) impact B) creep resistance C) chemical exposure D) flammability
【单选题】Aluminium alloys are generally used for their
A.
Low thermal conductivity
B.
Low electrical conductivity
C.
Excellent corrosion resistance
D.
High mass density
【单选题】Costs of ground handling on a per kg basis are generally lower for small consignments. ( )
A.
正确
B.
错误
【判断题】Comparators are generally used for quick checking of the linear dimensions.
A.
正确
B.
错误
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