子囊果有哪些类型?
可引起生理性心悸的药物有()。 ["肾上腺素","阿托品","甲状腺素","氨茶碱","普萘洛尔"]
砂浆抗压强度试验所用设备必须符合的规定有() ["试模为边长70.7mm的立方体","试模内表面不平度为每100mm不超过0.05mm","组装后各相邻面不垂直度不应超过±0.05°","钢垫板的不平度为每100mm不超过0.05mm"]
新生儿红细胞寿命多为() ["60~80天","70~90天","80~100天","90~110天","100~120天"]
患者男性,59岁。患冠心病20年,某日突然神志丧失,呼吸不规则,即刻进行心肺复苏,心脏按压时下压胸骨的深度是()。 ["1-3cm","至少5cm","至少10cm","3-5cm","至少15cm"]
简述何谓管理?