【单选题】耳硬化症听力学检查有较大诊断价值的是( )
【单选题】液体在毛细管中上升的高度与下列哪一个因素无关
【判断题】因为牛乳冷冻后细菌不会繁殖,乳则不易酸败,所以冬季冷冻是保存牛乳的最好办法。( )
【单选题】The article published in The Lancet Infectious Diseases found that
A.
a new multi-drug resistant bacterium has appeared
B.
some bacteria have developed a new gene to resist almost all antibiotics
C.
some infections are caused by antibiotics
D.
some countries are successful in controlling multi-drug resistant microorganis
【判断题】因为牛乳冷冻后细菌不会繁殖,乳则不易酸败,所以冷冻是保存牛乳最好的办法。
【单选题】液体在毛细管中上升的高度与下列哪一个因素基本无关