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During daylight savings time the meridian used for determining the time is located farther ______.
A.west in west longitude and east in east longitude
B.east in west longitude and west in east longitude
C.west
D.east
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单选题When daylight savings time is kept，the time of tide and current calculations must be adjusted.One way of doing this is to（）.A
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单选题The interval of the average elapsed time from the meridian transit of the moon until the next high tide is called the（）.A
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单选题The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.A
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单选题You work as a database administrator for Certkiller .com. In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（）A
It degrades the run time and compiler performance.B
It provides better run time and compiler performance.C
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单选题During daylight savings time the meridian used for determining the time is located farther（）.A
eastB
westC
east in west longitude and west in east longitudeD
west in west longitude and east in east longitude
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单选题Daylight savings time is a form of zone time that adopts the time（）.A
one zone to the eastB
one zone to the westC
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单选题In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（）A
It degrades the run time and compiler performance.B
It provides better run time and compiler performance.C
It provides better optimization of the statement during parse time.D
It forces the rule based optimizer to be used for statement optimization.E
It provides better run time performance but slightly degraded compiler performance.F
It provides better run time performance but slightly degraded run time performance.
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单选题A time diagram is a diagram of the celestial sphere as observed from above the（）.A
south celestial poleB
north celestial poleC
observer's meridianD
Greenwich meridian
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