We need to stay open and inclusive and draw on each other's ( ). A: strengths B: backwardness C: weaknesses D: disadvantages

________ is a symbol of the Qing dynasty’s backwardness and insularity. A: Jing-Zhang Railway B: Tangxu Railway C: Wusong Railway D: Baocheng Railway

在李杰教授的《工业大数据》中工业大数据的3“B”问题是指（） A: BigData大数据 B: BelowSurface C: Broken碎片化 D: BadQuality低质性 E: Backwardness落后性