预激综合征患者发作心动过速时首选物理方式转律是（）

A.毛花苷C静脉注射

B.腺苷静脉注射

C.迷走神经刺激

D.电复律

E.经导管消融旁路

When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）soonest.

A.reach the distress area

B.conduct a sector search

C.send rescue vessels

D.assist coordinately in SAR operation