润滑良好的齿轮传动中常见的破坏形式是（），它一半多出现在靠近齿面节线的齿根表面上。
A、齿面点蚀
B、齿面磨损
C、齿面胶合
D、齿面塑性变形
参考答案：A
描述"x是小于100的非负整数"的Visual Basic表达式是【 】。
The nurse notices that the client's pupils are fixed and dilated. What does this finding indicate
A．The client is permanently paralyzed.
B．The client is going to be blind as a result of an injury.
C．The client probably has meningitis.
D．The client has received a significant brain injury.
