乳突梅氏位的摄影角度的正确选择是()。
A.双25°
B.双35°
C.双45°
D.双55°
E.双65°
参考答案:C
解析:
乳突梅氏位又称乳突双45°位。
发现电磁感应现象的物理学家是( )
A.牛顿
B.奥斯特
C.法拉第
D.瓦特
The (29) is a general description of the architecture of a workflow management system used by the WFMC, in which the main components and the associated interfaces are summarized. The workflow enactment service is the heart of a workflow system which consists of several (30) 。
29()
A. waterfall model
B. workflow reference model
C. evolutionary model
D. spiral model