Areas which cannot be scanned by the radar of the vessel because they are shielded by parts of its superstructure, masts,etc means().
A. blind sectors
B. sheltered area
C. unseen area
D. unscan ble area
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负荷试验中,检验电梯平衡系数应为()。
A. 40%~50%
B. 40%~45%
C. 45%~50%
D. 40%~60%
工伤保险基金由()构成。
A. 用人单位缴纳的工伤保险费
B. 工伤保险基金的利息
C. 职工个人缴纳的工伤保险费
D. 职工个人缴纳的工伤保险费的利息
E. 用人单位缴纳的工伤保险费的利息
液体的压力越低,其沸点就越高。
A. 正确
B. 错误