炎热气候下行车时,发现轮胎气压过高。甲说:应选择荫凉处停息,使胎温自然下降,胎压恢复正常再行驶。乙说:应用放气或泼冷水的方法降温降压。以上说法中()。
A. 甲正确
B. 乙正确
C. 甲乙都正确
D. 甲乙都不正确
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电子商业汇票的质押业务处理包括()
A. 质押申请
B. 质押请求应答
C. 质押解除请求
D. 质押解除请求应答
当某单元格中输入公式或数字后出现“#######”,表示()
A. 单元格的列宽不够
B. 单元格的行宽不够
C. 单元格的格式不对
D. A或C
In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should()
A. build up the piston crown by metal spraying
B. build up the cylinder head by metal spraying
C. insert shims between the crankpin bearing box and the connecting rod foot
D. install a thinner head gasket