问题
单项选择题
It was from the Lowell Laboratory that the ninth ______ Pluto, was sighted in 1930.
A. planet
B. constellation
C. stardom
D. satellite
答案
参考答案:A
解析: 近义辨析。
A.planet行星(尤指太阳系);B.constellation恒星群,星座;C.stardom明星的身份,演员们;D.satellite人造卫星,又知Pluto是冥王星;答案应为A。