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【判断题】
柴油机的喷油器通常布置在气缸盖的中间是为了保证油气混合均匀。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】A copper producer is worried about the copper prices going down. The risk of downward movement in prices can be hedged by taking one of the following potions
A.
Buying call options on copper
B.
Buying copper futures
C.
Selling copper futures
D.
Selling copper call options
【简答题】倒垂线常用作变形监测的基准线，可用于水工建筑物的( ) A应变监测 B水平位移监测 C垂直位移监测 D裂缝监测 E挠度监测
【简答题】对水工建筑物进行监测与维护，必须本着 [填空(1)] 的原则。
【简答题】A．The customers. B．Increased sales. C．The producer. D．Reduced prices.
【单选题】The major difference between the Consumer Price Index and the Producer Price Index is that:
A.
the PPI is based on retail prices and CPI is based on wholesale prices.
B.
the PPI measures the cost of living of self-employed workers and the CPI measures the cost of living of salaried workers.
C.
the PPI generally registers a higher rate of inflation than the CPI.
D.
the PPI is based on the cost of a basket typically purchased by producers, while the CPI is based on the cost of a basket typically purchased by consumers.
【判断题】The producer prices index (PPI) is constructed to measure the change in price of total production
A.
正确
B.
错误
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