Diurnal aberration is due to().
A、motion of the Earth in its orbit
B、rotation of the Earth on its axis
C、the body's orbital motion during the time required for its light to reach the Earth
D、a false horizon
A、motion of the Earth in its orbit
B、rotation of the Earth on its axis
C、the body's orbital motion during the time required for its light to reach the Earth
D、a false horizon
A、daily lapse reading B、diurnal variation of pressure C、pressure tendency D、synoptic pressure
A、above the polar circles B、in a low pressure area C、during periods of low temperatures D、in the doldrums
A、refraction of light as it enters the Earth's atmosphere B、rotation of the Earth on it's axis C、the body's orbital motion during the time required for its light to reach Earth D、a false horizon
A、A.IΦ(7)= IΦ(8)>IΦ(5)= IΦ(6)>IΦ(1)= IΦ(2)= IΦ(3)=IΦ(4) B、B.IΦ(7)= IΦ(8)>IΦ(5)= IΦ(1)>IΦ(6)= IΦ(2)= IΦ(3)=IΦ(4) C、C.IΦ(7)= IΦ(8)>IΦ(5)= IΦ(3)>IΦ(6)= IΦ(1)=IΦ(2)=IΦ(4) D、D.IΦ(5)=IΦ(7)= IΦ(8)>IΦ(3)>IΦ(6)= IΦ(1)=IΦ(2)=IΦ(4)
A、IΦ(1)= IΦ(2)>IΦ(3)= IΦ(4)>IΦ(5) B、IΦ(1)= IΦ(3)>IΦ(2)= IΦ(4)>IΦ(5) C、IΦ(1)> IΦ(2)>IΦ(3)= IΦ(4)=IΦ(5) D、IΦ(1)> IΦ(2)>IΦ(3)> IΦ(4)>IΦ(5)
A、①s=0;②i=1;③s=s+i;④i=i+2;⑤如果i≤1000,则返回③;⑥结束 B、①s=0;②i=1;③i=i+2;④s=s+i;⑤如果i≤1000,则返回③;⑥结束 C、①s=1;②i=1;③s=s+i;④i=i+2;⑤如果i≤1000,则返回③;⑥结束 D、①s=1;②i=1;③i=i+2;④s=s+i;⑤如果i≤1000,则返回③;⑥结束