A、正确
B、错误
答案：A
A、正确
B、错误
答案：A
A. 充电电流过大
B. 充电电流过小
C. 充电电流不稳
D. 不充电
解析： BI011 调节器调节电压过低会导致发电机充电电流过小。 答案选B。调节器是用来控制发电机输出电压的装置，如果调节器将电压调节得过低，发电机的输出电流也会相应减小，导致充电电流过小。
A. 工作结束
B. 吊钩水平移动
C. 预备
D. 吊钩上升
解析： AE003 在手势指挥信号中，手臂伸直，置于头上方，五指自然伸开，手心朝前保持不动，是指挥发出的 ( ) 信号。 答案: C. 预备 解析: 这道题考察了手势指挥信号中特定手势的含义。根据描述，手臂伸直，置于头上方，五指自然伸开，手心朝前保持不动的手势通常用于表示"预备"的信号，即表示即将开始进行操作，但还未实际开始。其他选项对应不同的手势信号，如吊钩水平移动、工作结束和吊钩上升。
A. 正确
B. 错误
解析：解析:正确:竖吊钢板起重钳,钳口内一次只能夹持一块钢板,禁止叠层吊运。
A. 正确
B. 错误
解析：解析:正确:柴油机的调速器按工作原理可以分为机械离心式、液压式和气动式三大类。
A. 正确
B. 错误
解析：解析:正确:液压缸按其运动方式可分为直线往复运动式和回转往复摆动式。
A. 正确
B. 错误
解析：解析:正确:液压泵和马达在安装之前,应用液压油彻底的清洗
A. 正确
B. 错误
A. 正确
B. 错误
解析：解析:正确:球墨铸铁曲轴冷压校正压弯量为曲轴弯曲量不大于 10 倍。
A. 正确
B. 错误
A. 煤气机
B. 蒸汽机
C. 电动机
D. 汽轮机
解析： BF001 内燃机的分类按燃料不同可分为汽油机、柴<|endoftext|> There are several reasons why dogs may engage in excessive licking: Anxiety or stress: Licking can be a soothing behavior for dogs, similar to how humans may comfort themselves by biting their nails or twirling their hair. Dogs may lick excessively when they are feeling anxious, stressed, or nervous. Medical issues: Excessive licking can be a sign of underlying medical issues such as allergies, skin infections, or gastrointestinal problems. If your dog's licking is accompanied by other symptoms such as redness, swelling, hair loss, or a change in appetite, it's important to consult with a veterinarian. Boredom or lack of stimulation: Dogs that are bored or not getting enough mental and physical stimulation may resort to excessive licking as a way to pass the time. Attention-seeking behavior: Some dogs may lick excessively as a way to get attention from their owners. If your dog realizes that licking gets them attention or treats, they may continue to do so. Habit: Dogs are creatures of habit, and they may develop a licking habit if they find it comforting or rewarding in some way. It's important to observe your dog's behavior and consult with a veterinarian if you are concerned about their excessive licking. They can help determine the underlying cause and recommend appropriate treatment.
