题目内容
往复泵的使用范围侧重于高扬程、小流量
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轴流泵是一种叶片式泵
往复泵是叶片式泵
Answer the following questions to according to the text. (首字母已经给出，但填写时请写出完整的单词A，下同。)(Para. 2) 1 Where does the phrase “Keeping up with the Joneses” come from?It comes from a c___________s___________of the same title launched by Pop Momand in 1913.
(Para. 3&4) 2 Why were we not aware of what the Joneses were doing prior to the late 1880s?Prior to the late 1880s, m___________m___________was not born. We were only concerned about making our own living.
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