Time  ___  , I will give you further detail about the development of the experiment.   [ ]

A. permitted  

B. allowed    

C. permitting      

D. allowing

麻疹的早期特征为：

A．高热

B．咳嗽

C．眼结膜充血

D．玫瑰色斑丘疹

E．颊粘膜灰白色斑点