粪便隐血试验阳性见于()。 ["胃溃疡","胃癌","结肠癌","钩虫病","肠结核"]
()是指附加于贸易项目的其他描述信息如批号、日期和度量的编码。 ["附加信息编码体系","数据载体","标识代码体系","应用标识符体系"]
引种驯化
在J2EE中,以下各项中,()正确阐述了创建inputstreamreader的方式 ["new InputStreamReader(new FileInputStream(“data”))","new InputStreamReader (new FileReader(“data”))","new InputStreamReader (new BufferedReader(“data”))","new InputStreamReader ( “data”)"]
运行中汽轮机突然失磁,发电机将变成()运行。 ["同步电动机","异步电动机","异步发电机","不确定"]
脂肪对蛋白的节约作用