进行性核上性麻痹最常见的初始症状为()
A．头痛
B．眼震
C．上视受限
D．眼球侧视受限
E．下视受限
参考答案：E
Not until he called the secretary three times ______ that the manager went to an important meeting. [ ]
A. did he tell
B. he told
C. was he told
D. he was told
第四权力机关
