45. According to the passage, which of the following is NOT true of elliptical galaxies? (A) They are the largest galaxies. (B) They mostly contain old stars. (C) They contain a high amount of interstellar gas. (D) They have a spherical shape.

49. Why does the author mention the Virgo galaxy and the Andromeda galaxy in the third paragraph? (A) To describe the effect that distance has no visibility. (B) To compare the ages of two relatively young galaxies. (C) To emphasize the vast distances of the galaxies from Earth. (D) To explain why certain galaxies cannot be seen by a telescope.

45. According to the passage, which of the following is NOT true of elliptical galaxies? (A) They are the largest galaxies. (B) They mostly contain old stars. (C) They contain a high amount of interstellar gas. (D) They have a spherical shape.

其他試題

45. According to the passage, which of the following is NOT true of elliptical galaxies?
(A) They are the largest galaxies.
(B) They mostly contain old stars.
(C) They contain a high amount of interstellar gas.
(D) They have a spherical shape.