皮皮学，免费搜题
登录
搜题
【单选题】
通过万用表对宽量程氧传感器的性能进行检测时,将一块万用表置于电压挡,表笔接到被测传感器的测量室两侧电极,将另一块万用表置于电流挡,将表笔串到泵氧元两侧电极的接线中,起动发动机通过加减速模拟混合气空燃比频繁改变时,观察万用表的数值变化情况。正常情况下,当电压表上升时,电流表指示电流应( )。A.
缓慢上升
B.
缓慢下降
C.
快速下降
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Mrs. Parker woke up at the sound of noise and asked what _____.
A.
happened
B.
has happened
C.
would happen
D.
had happened
【单选题】Mrs. Parker woke up at the sound of explosion and asked what______.
A.
happened
B.
had happened
C.
would happen
D.
has happened
【单选题】国际铁路货物联运运单中,发货人凭以向银行及收货人结算货款,向铁路提出变更运输要求以及在货物和运单全部灭失时向铁路提出赔偿要求的依据是( )
A.
运单正本
B.
运行报单
C.
货物交付单
D.
运单副本
【单选题】Mrs.Parker woke up at the sound of explosion and asked what_____.
A.
happened
B.
had happened
C.
would happened
D.
has happened
相关题目：
参考解析：
知识点：
题目纠错 0
发布
