单选题
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一艘700总吨的遮蔽水域航行的货船,满足下面哪些条件,船舶证书可以保持有效?()
躁狂发作睡眠障碍的特点是()
在含硫化氢环境中,若人员眼睛受到轻度损害,可用()能彻底清洗,并就医。
结构试验前,对所使用的仪器进行标定(率定)。下列几种仪器标定正确的是()?
灯具悬挂高度与课桌照度均匀度关系是()。
在中国境外设立的中国企业,在向国内报送财务报表时应当( )。
08-32捣固车发动机冷却风扇液力偶合器的机油滤清器罩()小时须定期清洗一次
工程项目交工后可采取何种方式进行回访?
脊椎骨折可出现()
女性,20岁,心悸,多汗1个月。体检发现血压160,/80mmHg,心率110次/分,以下哪项处理正确()
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