【判断题】Because their properties differ greatly, petroleum asphalt should not be confused with coal tar. ( )
【判断题】7-吸光光度法只能用于混浊溶液的测量( )。
【简答题】Biomass is the only new energy that can replace fuel on a large scale. (coal / petroleum)
【判断题】吸光光度法只能用于混浊溶液的测量( )。
【简答题】According to the fifth paragraph, which of the following about bees' genes is true?
【单选题】某基础埋深5m,下列关于基底附加应力说法正确的是()
【多选题】Which of the following statements are tru e of the Hundred Years' War?
A.
It marked the decline of feudalism in Britain.
B.
It lasted for exactly one hundred years.