单项选择题
All units of measurement are（）, because space, time, weight, and other dimensions are not naturally divided into units.
A.objective B.traditional C.artificial D.controversial
单项选择题 Some creatures, for example, lizards (蜥蜴), can（）lost parts of their bodies, but we human beings can not.
单项选择题 I didn't expect that he would take（）of my failure to achieve his own goal.
单项选择题 The pioneers（）their journey after a short rest.
