关于儿童溺水的描述,下列错误的是
关于儿童溺水的描述,下列错误的是
English classroom activities for elementary and middle schools can be divided into four types: start-up, language learning,____ and summary.
患者,男,45岁,车祸致胸部外伤后胸痛伴胸闷5小时,胸片提示左侧胸腔积液,胸穿抽得不凝固血液。应首先考虑的诊断是( )