载货汽车在离合器处于正常接合状态下,分离杠杆与分离轴承之间应留()的间隙,以保证摩擦片在正常磨损后仍能处于完全接合状态。
A. 1~2mm
B. 3~4mm
C. 5~6mm
D. 7~8mm
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采用D/P结算方式,出口商办理了出口信用保险,货物按时到达目的港,质量也没有问题,但遭到进口商的拒付,出口商可以凭保险单向保险公司索赔。
A. 正确
B. 错误
You create a Web Form. The Web Form allows users to recover their passwords. You add a PasswordRecovery server control by using the following code segment.You need to ensure that the server control generates a new password and sends it by e-mail to the users e?mail address. Which two actions should you perform? ()
A. Create a valid definition in the Web.config file.
B. Set the passwordFormat attribute of the configured membership provider to Encrypted.
C. Ensure that the enablePasswordRetrieval attribute of the configured membership provider is set to False.
D. Ensure that the enablePasswordRetrieval attribute of the configured membership provider is set to True.
汽车主减速器主、从动锥齿轮采用双曲线齿型,与螺旋锥齿轮相比,主、从动齿轮轴线不相交,(),有利于缩小汽车最小离地间隙,改善汽车的稳定性。
A. 传动比大、主动齿轮轴线高
B. 传动比大、主动齿轮轴线低
C. 传动比小、主动齿轮轴线高
D. 传动比小、主动齿轮轴线低
凸轮轴及其轴承异响的听诊部位应为()处。
A. 正时齿轮室
B. 汽缸两侧
C. 气门室
D. 凸轮轴的一侧