【多选题】艾滋病期诊断标准包含下列哪些()
A.
原因不明的38℃以上持续不规则发热,>1个月
【单选题】What does monolithic mean in Chinese?
【单选题】monolithic technique
【判断题】凡MgO、SO 3 、初凝时间和安定性中任一项不符合标准规定时均为废品。( )
【判断题】在物料搬运过程中,尽量避免迂回搬运、往返搬运、倒流搬运,提高搬运的批量及减少装卸的次数,这样才能使得搬运的路程最短。
【判断题】调色盒中颜料排列的原则是:用时顺手,看着美观和邻近色串格对颜料没有造成严重的污染。
【单选题】In the third paragraph, the author implies that the techniques of history and the techniques of social science are ______.
A.
quite different from each other
B.
equally useful in studying prehistoric cultures
C.
usually taught to students of archaeology
D.
both based on similar principles