A、elongation
B、conjunction
C、opposition
D、quadrature
更多“As observed from the Earth，the angle between lines from the Earth to the Sun and the Earth to an inferior planet is known as（）.”相关的问题
A、Geographical positions outlining the area of the sector B、True bearings as observed from the ship toward the light C、An outline of the area of the sector D、True bearings as observed from the light toward the ship
A、phase correction B、refraction correction C、semidiameter correction D、augmentation correction
A、Errors due to unusual parallax are eliminated B、The same body can be used for a fix from observations separated by several minutes C、The declination is the only information needed from the almanac D、The semidiameter correction of the sextant altitude is eliminated
A、difference between the reading of the two pointers，which shows wind direction B、last two figures of the reading of the pointer，such as 87，76，or 92 C、present reading of the pressure，combined with the changes in pressure observed in the recent past D、weather indications printed on the dial (such as cold，wet，etc.) under the pointer
A、plugging gooseneck tank vents to prevent accident overflow B、maintaining a high transfer rate until a slight trickle of oil is observed flowing from the overflow line C、sounding the tanks frequently and reducing the transfer rate as the level approaches maximum fill D、maintaining a supply of chemical dispersant to cleanup minor oil spills adjacent to the ship
A、As the root user from serverA run the command rhost serverB B、As the root user from serverA run the command rlogin serverB C、As the desired user from serverB run the command rhost serverA D、As the desired user from serverA run the command rlogin serverB
A、SELECT r1 AS retval FROM tab1 INTERSECT SELECT r2 AS retval FROM tab2 B、SELECT r1 AS retval FROM tab1 EXCEPT SELECT r2 AS retval FROM tab2 C、SELECT DISTINCT r1 AS retval FROM tab1, tab2 WHERE r1 <> r2 D、SELECT r1 AS retval FROM tab1 UNION SELECT r2 AS retval FROM tab2
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