Task 221.For as long as three months of a year, the sun_________on the ice-covered land of Alaska22.Accordingtostatistics,_________of the total area of Alaska has been used for farming, 23.Alaska was originally part of Russia, but was bought_________24.Gold did not bring to Alaska as much wealth_________25._________has become Alaska'ssingle important resource.A. as fish doesB. oilC. by the United States in the 19th centuryD. shines day and nightE. only a very small percentageF. a limited amount of the gold found there
Which of the following is true of the fossil deposits discussed in the passage?
A、They include examples of newly discovered species.
B、They contain large numbers of well-preserved specimens
C、They are older than fossils found in other places.
D、They have been analyzed more carefully than other fossils.