【C13】A．observedB．observableC．detectedD．detectible

【C13】A．organizationalB．organizationC．organizingD．organized

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We were deeply impressed by her important ______ to the success of the project.A．workB．det

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In automatic ____ the winch may be overhauled and wire is paid off the barrel at a pre-det

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【B15】A．observedB．examinesC．studyD．questioned

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We were deeply impressed by her important ______ to the success of the project.A.workB.det

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SEV/OCC/DET均有()个评分等级。

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设A.B均为n阶矩阵 则下列正确的为( )。A.det(A+B)=detA+detBB.AB=BAC.det(AB)=det(AB)D.(A-B)2=A

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