扩张型心肌病患者的最主要的临床表现是()
A.呼吸道感染
B.室性心律失常
C.心力衰竭
D.晕厥
E.房室传导阻滞
参考答案:C
Which of the following is NOT a service provided by an underwriter in the primary market()
A. Origination.
B. Risk Bearing.
C. Diversification.
抱杆采取单侧摇臂起吊构件时,应();抱杆无拉线时,()。
A.收紧抱杆四侧临时拉线
B.起吊构件对侧摇臂及起吊滑车组应收紧作为平衡拉线
C.放松抱杆四侧临时拉线
D.起吊构件对侧摇臂及起吊滑车组应放松作为平衡拉线