与意志的自觉品质相反的是冲动性。

中 * * 党自成立以来，就以马克思主义为指导，肩负起发展中国先进文化的历史使命。我们发展先进文化的根本目标是

A．培育“四有”公民

B．发展科学事业

C．积极发展文化事业

D．发展教育事业

正常足月妊娠，子宫腔容量平均比未孕时增加的倍数为（）

A.100

B.200

C.300

D.500

E.1000

甘草大量（）

A.收敛而便秘

B.和血

C.可出现水肿、低血钾、血压升高

D.收敛

E.破血

Since life began eons ago, thousands of creatures have come and gone. Some, such as the dinosaurs, became extinct due to naturally changing ecologic conditions. More recent threats to life forms are humans and their activities. Man has drained marshes, burned prairies, dammed and diverted rivers. Some of the more recent casualties of man’’s expansion have been the dodo, great auk, passenger pigeon, Irish elk, and Steller’’s sea cow. Sadly, we can no longer attribute the increasing decline in our wild animals and plant species to "natural" processes. Many species are dying out because of exploitation, habitat alteration or destruction, pollution, or the introduction of new species of plants and animals to an area. As mandated by Congress, protecting endangered species, and restoring them to the point where their existence is no longer jeopardized, is the primary objective of the U.S. Fish and Wildlife Service’’s Endangered Species Program.

Which of the following would be a likely theme for the next paragraph

A．Naturally changing ecological conditions.

B．Animals that have become extinct.

C．Achievements of the government Endangered Species Program.

D．Programs that have destroyed natural habitats.

若用水配制1m³平均密度为1500kg/m³的重介质悬浮液，磁铁矿的密度为5000kg/m³时，所需添加磁铁矿的质量为（）

A.700kg

B.450kg

C.625kg

D.360kg