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通常结晶设备应有搅拌装置,搅拌器的形式与速度一般趋向于采用较大直径的搅拌桨叶,较低的转到速度。
不影响病人遵医行为的因素是()。
数组SCORE中存有一个班级40名学生的英语课程成绩。按照0~59,60~74,75~84,85~100统计各分数段人数,存入N0,N1,N2,N3变量内。
冰冻解冻去甘油红细胞甘油含量标准( )。
在双线双向自动闭塞区段,改变运行方向这一任务是由()完成的。
用吸式密度计和高率放电计测量蓄电池的充电程度,两者可以互相代替吗?为什么?
治疗帕金森病的药物有:
国家干预汇率的目的及措施有哪些?
中国古代记载的物理学知识包括杠杆原理和浮力理论、声学和光学知识的著作是( )。
女性,45岁。进行性加重的心悸气短5年余,体力活动后症状明显。近1个月出现双下肢肿,食欲不振,日常体力活动即有明显呼吸困难。查体;血压140/90mmHg,心率90次/分,双颧绀红,双肺呼吸音粗,心尖区可闻舒张期中晚期隆隆样杂音,第一心音亢进。其导致心力衰竭的病因可能是()
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