清煤标准:巷道内()、()、(),水砂充填采取必须煤水分离,()畅通。

题型:填空题

问题:

清煤标准:巷道内()、()、(),水砂充填采取必须煤水分离,()畅通。

考点:清煤工考试清煤工考试题库
题型:填空题

按《大气污染物综合排放标准》规定,某企业100m高排气筒二氧化硫最高允许排放速率为170kg/h,受各种因素影响,该企业实建排气筒高度达到200m,则二氧化硫最高允许排放速率为()。

A.340kg/h

B.170kg/h

C.680kg/h

D.255kg/h

题型:填空题

女性,48岁,颈部包块3年,近来胸闷、憋气、胸痛,CT扫描如图,请选择正确的描述和答案()。

 

A.考虑为胸骨后甲状腺肿

B.考虑为血管瘤

C.考虑为双侧甲状腺肿大

D.胸骨后甲状腺肿是指甲状腺50%位于胸骨后

E.胸骨后甲状腺肿是指甲状腺60%位于胸骨后

题型:填空题

采用提高传动机构精度,缩短传动长度,减小装配精度方法是消除()误差。

A、传动链误差

B、导轨误差

C、主轴误差

D、刀具误差

题型:填空题

Fire protection and manning regulations for towing vessels state that the Master or person in charge must ensure that all crew members who have not participated in the drills or received the safety orientation().

A.receive a safety orientation or view a videotape before the vessel gets underway

B.view a videotape on safety procedures within 48 hours of reporting for duty

C.receive a safety orientation within 24 hours of reporting for duty

D.none of the above

题型:填空题

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