在火焰的焰心、内焰和外焰中，温度最低的部分是（）。
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《江西省高速公路养护工程竣（交）工验收办法（试行）》规定组织一阶段竣（交）工验收应具备哪些条件？
汽车通过空调系统检视窗查看时，检视窗清晰现象说明（）
A. 制冷剂不足
B. 制冷剂全满
C. 无制冷剂
D. 干燥剂正在系统中流通
钢塔构件连接法兰盘的接触面不得涂漆，如有污染应清除干净，以确保良好的接地。
A. 正确
B. 错误
You work as a database administrator for Certkiller .com. You added atablespaceto your database. Because of the changes to the physical structure of your database， you performed a backup of the control file to trace. After this， you lost only the control files and the instance aborted due to a hardware failure. How would you proceed to recover the database？（）
A. Start the instance and open the database, instance recovery automatically recovers control files
B. Create a file based on the contents of the trace file and save it to the control file locations and start the database
C. Re-create the database (The recovery of the control file is not possible because you have lost all the control files.)
D. Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
E. Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
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