脾其华在：
A．爪
B．面
C．唇
D．毛
E．发
参考答案：C
People often find themselves caught in such a _____ as “whether…or not…”.
A．dilemma
B．endeavor
C．fault
D．survival
简述塔设备设计的基本步骤。如何确定筒体轴向应力？（思路）
