喉腔最狭窄的部位是
A．喉口B．前庭裂C．喉中间腔D．声门裂E．声门下腔
参考答案：D
解析：声门裂是喉腔最狭窄的部位。
Not my parents like cooking .My father only likes washing dishes.
A．either
B．each
C．both
D．every
750kV交流带电作业绝缘工具工频耐压预防性试验电压为825kV。
