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【判断题】
若随机变量序列依概率收敛于a,则该序列的平方以概率收敛于a的平方A.
正确
B.
错误
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举一反三
【判断题】A PDM system can help moldemakers improve the efficiency of data management.
A.
正确
B.
错误
【判断题】Application of a PDM system in mold design can help the users to ensure the quality of their products.
A.
正确
B.
错误
【单选题】The musician along with his band members ________ ten performances in the last three months.
A.
gives
B.
has given
C.
have given
D.
give
【判断题】Applicaiton of a PDM system in mold design can help the users to ensure the quality of their products.
A.
正确
B.
错误
【单选题】The two newspapers gave different ______ of what happened.
A.
versions
B.
editions
C.
productions
D.
texts
【单选题】The musician along with his band members _____ ten performaces in the last three months.
A.
gives
B.
has given
C.
have given
D.
give
【简答题】实验发现电子吸收光谱并非线状光谱,吸收峰宽度约为1000—3000cm-1 原因:
【判断题】A PDM system can help mold designers find existing mold designs that are similar to the project at hand.
A.
正确
B.
错误
【判断题】A PDM system can help moldmakers improve the efficiency of data management.
A.
正确
B.
错误
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