【单选题】Morphology is the study of______.
A.
the internal structure of words and the rules that govern their formation
B.
the uses of different types of utterances in different contexts
C.
the differences between sounds used in human languages and sounds in nature
D.
the rules that pertain to all languages throughout the world.
【单选题】在 510nm 处测量浓度为 50.0 μ g/ml 的某有色溶液的标准溶液的吸光度为 0.500 ,相同条件下未知浓度的该物质的样品溶液的吸光度为 0.470 ,则该未知样品的浓度为
【单选题】某有色溶液浓度为 c 时,透光度为 T0。将其浓度稀释为原来的 1/2 时,其吸光度为
【单选题】某有色溶液浓度为 c 时,透光度为 T 0 。将其浓度稀释为原来的1/2 时,其吸光度为 :
【简答题】RIP协议选择路由的度量标准(metric)是跳数,最大跳数是 跳。
【单选题】判定系数 r 2 的值越大,则回归直线()。