青藏车车底制动部件安装时全部使用六角法兰面（施必牢）防松螺母
参考答案：错
As is often pointed out, knowledge is a twoedged weapon which can be used______ for good or evil. [ ]
A. similarly
B. properly
C. equally
D. widely
水在锅炉内加热汽化，所吸收的热量等于水的初终状态的（）。
A.温度变化
B.压力变化
C.熵的变化
D.焓的变化
