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【判断题】
所谓横轧即是钢板的延伸方向与原料的纵轴方向相垂直的轧制 。（ ）A.
正确
B.
错误
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【简答题】13,The price of treasuries rises as interest rates fall, and the opposite is true when interest rates rise. Therefore, the best time to buy treasuries is when interest rates are relatively ______. (...
【单选题】When interest rates rise:
A.
the cost of investing rises, and businesses buy less equipment and structures.
B.
the return on investments rises also, and businesses eager to lock in future profits increase their investments.
C.
consumers are encouraged to save, and the automatic relationship between savings and investment leads to an increase in investment.
D.
investment tax credits kick in to maintain a steady level of investment.
【简答题】已知x：y=2：3，则y：x=______．
【简答题】已知x：y=3：2，则（x+y）：y=______．
【判断题】The price of PO rises when interest rates decline and falls when interest rates rise.
A.
正确
B.
错误
【判断题】任何一个网络，任何一台服务器都不会为用户提供无限大的磁盘空间。因为一个文件系统的磁盘窨使用率超出95%时，系统就不会正常工作，系统效率就极大下降。()
A.
正确
B.
错误
【简答题】已知3x+y=3，用x表示y，则y=______．
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