好消息2020年安徽六安专升本考试时间已通知

哲学的基本问题是（ ）

A.社会和自然的关系问题
B.思维和存在的关系问题
C.政治和经济的关系问题
D.理论和实践的关系问题

First,the spotted owl was threatened by logging in the Pacific Northwest．Now it's in danger from a new enemy,the barred owl．Barred owls have been moving to the Northwest from the eastern part of the United States．Stan Sovern has studied spotted owls．Now when he calls for spotted owls,barred owls are starting to appear．Sovern threw a mouse on the ground,and a barred owl grabbed it.
Scientists have learned that spotted owls start to vanish when barred owls come．Some barred and spotted owls have mated and produced hybrid babies．One spotted owl was killed by a barred owl.
Professor Ned K．Brown of the University of California-Berkeley says,"In some areas of Washington,the barred owls moved into very dense,deep woods．The same kind of woods that arc opened up,or destroyed by logging,that adversely influences the spotted owls."
Ten years have passed since the federal government began protecting the spotted owl．Loggers were forced to limit logging on seven million acres of government land．No one is sure how the arrival of the barred owls will impact laws that protect spotted laws．The barred owls like to live in the deep forests where loggers like to cut down trees．The barred owls will likely keep migrating to the Northwest.

Logging was greatly reduced__.

A.in the northeasten United States
B.on seven million acres of public land
C.two decades ago
D.to save the barred owls

那种主张“天赋的才能”“天生的心灵禀赋”的观点属于（　）。

A.唯心主义先验论
B.旧唯物论的直观反映论
C.唯物主义反映论
D.辩证唯物论的能动反映论

突触前神经元一次冲动通过突触传递后，可使突触后膜引起（　　）

A.动作电位

B.兴奋性突触后电位

C.抑制性突触后电位

D.阈电位

E.B或C