门控心血池显像中与左室收缩协调性有关的是（） ["振幅图","时相图","每搏量图","矛盾量图","时相电影"]
乳牙面洞深度（） ["牙釉质内lmm","洞深1~1.5mm","牙本质内","釉牙本质界处","与龋坏最深处一致"]
超声测量双顶径影响准确性的因素有（） ①选择测量平面不标准 ②胎头方位 ③胎头头型 ④羊水过少 ["①","①②","①②③","①②③④","①③④"]
恶性胸腔积液的放射性胶体腔内治疗，常用胶体磷酸铬的剂量为（） ["37-74MBq","37-74GBq","370-555MBq","555-740GBq","740-1110MBq"]
砌筑砖基础应使用（） ["水泥砂浆","石灰砂浆","石膏砂浆","混合砂浆"]
过热蒸汽品质不良会导致过热器与（）结垢。
