组织兴奋性高则（）
A.阈电位高
B.阈值低
C.反应性降低
D.刺激性增加
E.动作电位的幅值降低
参考答案：B
---How do you respond when ________ whether your girlfriend or wife looks fat?
--- Never say what you think. She just wants some reassurance(肯定) from you that she’s attractive.
A．asking
B．to ask
C．asked
D．being asked
管型避雷器固定角钢应呈水平状态，允许施工误差为（）。
A.+30mm
B.+50mm
C.+100mm
D.±100mm
