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【简答题】
某钢筋混凝土筋原设计采用HRB335级4根直径18mm的钢筋,现无此规格品种的钢筋,拟用HPB235级钢筋代换.试计算需代换钢筋面积、直径和根数。
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举一反三
【简答题】,往往取酒还独倾。
【单选题】If you feel tired, you may stop _____. [ ]
A.
have a rest
B.
to have a rest
C.
having a rest
D.
has a rest
【简答题】____?____。春江花朝秋月夜,往往取酒还独倾。
【简答题】设A=(a ij ) n×n ，试证下列等式成立：若|A|≠0，则(A * ) -1 =(A -1 )
【简答题】blank-filling Listen to the conversation again and fill in the blanks with the information you have just heard. 5 . It ’ s the man ’ s first visit and he ’ d like to make an ________ to see Dr. Cart...
【单选题】Which of the following statements is true about Quiz 2?
A.
You use more energy if you walk rather than jog for the same amount of time．
B.
You use more energy if you jog rather than walk the flalne distance．
C.
You use the same amount of energy whether you jog or walk the sanle distance．
D.
You usd the same amount of energy whether you jog or walk for the same amount oftime．
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