题目内容

受伤害职工或者其直系亲属、工会组织申请工伤认定时限是自事故伤害发生之日或者被诊断、鉴定为职业病之日起算()。

A. 一个月
B. 六个月
C. 1年
D. 两年

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小麦条锈与叶锈、秆锈夏孢子堆区别在于()。

A. 排列成行
B. 孢子堆大
C. 孢子堆颜色深
D. 表皮破裂

颌骨骨髓炎X线呈"虫蚀状"低密度区的病理基础是()

A. 骨膜增生,骨膜加厚
B. 骨组织增生,骨小梁增粗
C. 骨组织吸收,骨小梁结构不清
D. 死骨形成,肉芽组织充填
E. 新骨形成,骨小梁不规则

稀油站油温工作范围是()℃。

A. 5-25
B. 15-35
C. 25-45
D. 35-55

A vessel is proceeding from a very cold climate to a warm climate.With a cargo of non-hygroscopic nature,which of the following is correct?().

A. There is danger of heavy cargo sweat if outside air is introduced by ventilation
B. Danger of the ship sweat exists.Constant and vigorous ventilation is required
C. There is little danger of ship's sweat;slight possibility of cargo sweat
D. The possibility of any ship or cargo sweat is remote

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