— Where is the school singing contest going to be held tonight?

— I am not sure. Is it in the hall _________ the students often have a meeting? [ ]

A. where

B. which

C. that

D. when

男，50岁，不明原因晕厥，心电图示宽QRS波型心动过速，心室率150次／分，血压60/45mmHg。（）

A.临时心脏起搏器植入

B.肾上腺素

C.直流电复律

D.毛花苷丙（西地兰）

E.阿托品下列各例治疗应首选