6. Since the remains of Mesosaurus have been found in both Africa and South America, Wegener that South America and Africa must have been joined during that period of Earth history.
A: criticized
B: convinced
C: opposed
D: asserted
A: criticized
B: convinced
C: opposed
D: asserted
举一反三
- That Africa and South America were once joined can be deduced from the fact that ______. A: the two continents are still moving in opposite directions B: they have been found to share certain geological features C: the African plates has been stable, for 30 million years D: over 100 hot spots are scattered all around the globe
- Which of the following regions have the largest coal deposits? A: Europe B: South America C: Central America D: Asia/Pacific E: Africa
- The first blacks were brought from to North America as slaves in 1619. A: South America B: Africa C: Central Africa D: Oceania
- is the birthplace of potato. A: Australia B: South America C: Asia D: Africa
- What has been indicated by this incident A: South Africa is a non-racial democracy. B: Racism is still a problem in South Africa. C: Police in South Africa react quickly to any criminal acts. D: South Africa is still a dangerous plac