抢救青霉素G过敏性休克首选的药物是（）。
A.肾上腺素
B.去甲肾上腺素
C.抗组胺药
D.头孢氨苄
E.多巴胺
参考答案：A
A small plane crashed into a hillside five miles east of the city, ___ all four people on board. [ ]
A. killed
B. killing
C. kills
D. to kill
