答案:A
If the Watergate Incident__________Nixon would not have resigned from the presidency.
A.did not occur
B.had not occurred
C.was not occurring
D.be circling
光明穴可以治疗的病证是()
A.痴呆
B.热病
C.失眠
D.胸乳胀痛
E.足跗肿痛