【简答题】FILL IN THE GAP WITH WORDS OR PHRASES GIVEN IN BOX. 只写单词前面的大写字母。 A . universal B. wander C. by a small margin D . without so much as E. barrier F. threaten G. feature H. civilize I. close up J. chart ...
【简答题】网络缩略语知多少?How much do you know about the Cyber Slangs or Abbreviations? 请将缩率语跟它的完整拼写匹配起来。A. PRCB. RSVPC. STYSD. TYVME. IVDF. 4everG. TTYLH. MSPI. OTCJ. CRFK. YDKML. WYRNM. WDYSN. SUPO. BSP. BBLQ. LTNSR...
【简答题】输气管道采用压气机加压,设进气的压力为0.1 MPa,温度为20 °C,而要求每分钟输出压力为0.3 MPa、温度不高于60 °C的气体80 m3,现有吸气量为每分钟8 m3的压气机,问需用多少台? the air in pipe line is compressed by air compressors with intake pressure 20 °C and pressure 0.1...