It was from the Lowell Laboratory that the
题型:单项选择题
问题:
It was from the Lowell Laboratory that the ninth________, Pluto, was sighted in 1930.
A.planet
B.constellation
C.stardom
D.satellite
It was from the Lowell Laboratory that the ninth________, Pluto, was sighted in 1930.
A.planet
B.constellation
C.stardom
D.satellite