问题
选择题
He has been doing the job for many years, but has never felt ________ it, though his workmates think it is a ________ one．
A．tired of; tired
B．tired of; tiring
C．tiring of; tired
D．tiring of; tiring
答案
答案：B
考查形容词用法。Be tired of 对…厌倦；tired感到厌倦的；tiring令人厌倦的；句意：他多年以来一直在做这份工作，但是他从来没有对它感到厌倦。尽管他的同事们认为这是一份令人厌倦的工作。
，钢楔重力不计。劈入后欲使钢楔不滑出，钢楔两个平面的夹角α应为（）。
