锅炉电点火器两根电极尖端部距离一般为()mm。
A.1-2
B.3-4
C.5-6
D.7-8
参考答案:B
When assessing a toddler diagnosed with spastic cerebral palsy, which of the following would the nurse expect to find
A. Toe-walking.B. Drooling.C. Facial grimacing.D. Wide-based gait.
如图所示物体被吊在天花板上,画出该物体受重力的示意图。