单选题
发布日期:2021-03-22
SOLAS 74
MARPOL 73/78
STCW 78/95
ISM Code
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受扭构件与受弯构件的纵筋和箍筋配置要求有何不同?
补呼气容积是指()。
造纸废水处理采用活性污泥法,运行一直很正常,近5天因进水水温升到41摄氏度,生化池中午的极端水温到了42.2摄氏度,污泥出现了解体、二沉池出水水质也变得差了。虽然采取了降低进水水温的措施后,但生化池水温仍在40摄氏度左右,也采取了降低进水负荷,但二沉池出水效果改善不明显。请问这种情况,运行上应注意哪些问题?
男性,35岁,高热,皮肤瘙痒半个月,右颈及镇一上淋巴结肿大,无压痛及粘连,HGB90g/L,WBC8.0×109/L,N66%,L24%,骨髓涂片找到里细胞。如需明确诊断首先应作的检查是()
男,43岁,抵抗力差,贫血,易反复感染,皮肤黏膜色素沉着明显:生化检查:血糖降低、血钠降低、血钾升高、血钙升高。 该患者患何种疾病的可能性最大()
使图片按比例缩放应选用()
高度特异性畸胎瘤
放氧复合体
领导就是管理者带领全体成员执行组织计划的过程。()
罐头食品的排气方法有哪些?并对各种排气方法进行比较。
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