…. là một trở ngại lớn cho việc xây dựng chủ nghĩa xã hội”: a.
Bệnh ích kỷ.

b.
Bệnh lười biếng.

c.
Bệnh tham lam.

d.
Chủ nghĩa cá nhân.

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater

Most white men in the antebellum south could best be described as a) plantation owners. b) seafaring traders. c) merchants or shopkeepers. d) nonslaveholding family farmers.

Which number shows the location of the united kingdom of great britain?