What fuels does the rocket thruster use? Which of the following statements is NOT TRUE?

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问题 What fuels does the rocket thruster use?
Which of the following statements is NOT TRUE?

选项 A、The liquidizing temperature is similar for both methane and oxygen.
B、The liquidizing temperature for hydrogen is lower than that for methane.
C、Liquid methane is higher in density than liquid hydrogen.
D、Liquid methane engines are longer in impulse than liquid-hydrogen engines but shorter than hypergolic engines.

答案D

解析

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What fuels does the rocket thruster use? Which of the following statements is NOT TRUE?

公共英语五级笔试

公共英语（PETS）

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Whatfuelsdoestherocketthrusteruse?Whatisthecrucialrequirementontherocketsoflunarlanderengines?

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