下列属于实验研究的设计的基本要素的是() [" 进行干预"," 设立对照"," 回顾性观察"," 随机抽样"," 随机分组"]
销售商品一批,价款300 000元、增值税51 000元,款项已银行承兑汇票。该批商品成本为200 000元。编制上述业务的会计分录。
舌体震颤,最可能的疾病是() ["恶性贫血","甲亢","先天性心脏病","舌下神经麻痹","肺气肿"]
下列关于肾盂造瘘管的护理不正确的是()。 ["妥善固定","定时更换引流管和引流袋","每次冲洗引流管的液量为20~40ml","严格无菌操作","观察记录引流液的量、性状和颜色"]
蒴柄
心理神经免疫学