单项选择题
下列反应中,属于化合反应的是()
单项选择题 某孕妇,26岁,孕32周,阴道流液4小时入院,医嘱肌注地塞米松的的目的是()
单项选择题 驾驶员上车时需要检查什么()
单项选择题 As soon as we arrived, we realized that this was an emergency, as our patient, a middle-aged lady, was rolling about on her bed in extreme _________.