两岁以下的婴儿失去知觉时，要用一只手垫着背部，支撑起婴儿的头颅，用另一只手的两个手指按压胸骨下部的位置，每分钟100次，压下的深度为1.5—2.5厘米，一次呼吸配合5次压迫
1、正确正确
暂无解析
The（） inJanet‘scharacterhashinderedherfroomadvancementinhercareer.
Heleftordersthatnothing_____toucheduntilthepolicearrivedthere.
Perhapsthecustomerhas____hismonthlystatementandnotpaidthebill.
Thematterisnottobe____.
GreatasNewtonwas,manyofhisideas____todayandarebeingmodifiedbytheworkofscientistsofourtime.
