双相障碍Ⅰ型
参考答案：
双相障碍Ⅰ型：即bipolarⅠ.躁狂发作明显且严重，主要因躁狂而住院或接受院外治疗。
It was ____ that he had to ask for help. [ ]
A. so big work
B. so big a work
C. such a big work
D. such a big job
建设工程履约担保的有效期始于( )之日。
A．承包人收到工程预付款
B．合同签订
C．工程开工
D．合同生效
