【单选题】Many vehicle manufacturers recommend that a special electrical connector be installed between the battery and the battery cable when testing for ( ).
A.
Battery drain (parasitic drain)
【单选题】下列关于道路沥青说法有误的一项是()
A.
在道路工程中选用沥青时,要根据交通量和气候特点来选择
D.
道路石油沥青可用作密封材料和黏结剂以及沥青涂料
【简答题】下列关于人防工程中的避难走道的设置要求说法错误的是( )。 A.避难走道直通地面的出口不应少于2个,并应设置在不同方向 B.避难走道的装修材料燃烧性能等级应为B级 C.防火分区至避难走道人口处应设置前室,前室面积不应小于5m2 D.避难走道应设置消火栓、火灾应急照明、应急广播和消防专线电话 E.通向避难走道的各防火分区人数不等时,避难走道的净宽不应小于设计容纳人数最多一个防火分区通向避难走道各安全...
【多选题】下列各项中,属于企业生产费用在完工产品和在产品之间的分配方法的有( )。
【单选题】A user reports that their cell phone battery is dead and cannot hold a charge. Which of the following should be done when disposing of the old battery?()
C.
Place battery in a sealed plastic bag.
D.
Disassemble the battery.
【单选题】下列关于道路沥青说法有误的一项是( )
C.
在道路工程中选用沥青时,要根据交通量和气候特点来选择
D.
道路石油沥青可用作密封材料和黏结剂以及沥青涂料
【判断题】在金属材料中,晶界会阻碍晶体变形,使其强化。
【单选题】When there is a discrepancy between ideal and the reality, people are most likely to become______.
【单选题】When charging a lead acid (flooded-type) battery, ( ).
A.
The initial charging rate should be about 35 amperes for 30minutes
B.
The battery may not accept a charge for several hours, yet may still be a good (serviceable) battery
C.
The battery temperature should not exceed 51.6°C (125°F) (hot to touch)
【单选题】关于冷裂纹,下列说法错误的是 。
B.
通常出现在热影响热影响区的焊道下、焊趾和根部中
C.
焊前对焊接材料进行烘焙,可以防止冷裂纹的产生