【单选题】My mother has worked in this factory _____2 years.
【单选题】回转体动平面如图a所示,沿Y轴回转得到的轴测图是:
【单选题】回转体动平面如图a所示,沿Y轴回转得到的轴测图是:
【单选题】The message the author wishes to convey in the passage is that______.
A.
human civilization remains glorious though it is affected by climatic changes
B.
mankind is virtually helpless in the face of the dramatic changes of climate
C.
man has to limit his activities to slow down the global warming process
D.
human civilization mill continue to develop in spite of the changes of nature
【判断题】企业在生产耐用消费品时,应注重花色品种的变化更新,功能上要先进,更要注重品牌意识。