当柴油机的油温、水温降到80℃时,就可以关闭油门,使柴油机停止运转。
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95599客服中心事件工单书写中,在“客户信息”一栏应填写以下要素()。
A. 来电号码
B. 客户号
C. 客户姓名
D. 客户性别
立式金属计量罐,罐内液位高于出口管线上边缘200mm左右为最低液面。()
A. 正确
B. 错误
You are creating a locally managed tablespace to meet the following requirements: All the extents should be of the same size. The data should be spread across two data files. A bitmap should be used to record the free space within the allocated extents. Which three options would you choose?()
A. set PCTFREE and PCTUSED to 50
B. specify extent allocation as Uniform
C. specify extent allocation as Automatic
D. create the tablespace as bigfile tablespace
E. create the tablespace as smallfile tablespace
F. set segment space management to Automatic
G. use the RESIZE clause while creating the tablespace
为使CO、NOX减少,可以()点火时间。
A. 增加
B. 推迟
C. 保持
D. 先增加,后推迟