49. According to the passage, lunar researchers have focused mostly on (A)the possibility of finding water on the Moon (B)the lunar regolith (C)cataloging various land formations (D)craters and their origins

48. The author mentions “wispy marks” in line 19 as an example of (A)an aspect of the lunar surface discovered through lunar missions (B)a characteristic of large craters (C)a discovery made through the use of Earth-based telescopes (D)features that astronomers observed to be common to Earth and the Moon

49. According to the passage, lunar researchers have focused mostly on (A)the possibility of finding water on the Moon (B)the lunar regolith (C)cataloging various land formations (D)craters and their origins

其他試題

49. According to the passage, lunar researchers have focused mostly on
(A)the possibility of finding water on the Moon
(B)the lunar regolith
(C)cataloging various land formations
(D)craters and their origins