【单选题】在下图所指出的四个力中,使受力物体运动状态发生改变的是( )
【单选题】What is important for human bodies to renew?
【单选题】Why virtual reality and other technology are used in studying human evolution?
A.
Researchers discussed them and decided to develop these technologies in research.
B.
Internet is widely used and the need for communicating via computers is becoming urgent.
C.
Limited access to original stones and hidden information in inaccessible interior made it necessary.
D.
It will be cheaper and more convenient.
【判断题】亚里士多德指出“力是改变物体运动状态的原因”
【单选题】Human evolution is a multidisciplinary problem, one of its aspects is the origin and development of_______ human psychological features.
【简答题】Human being is a product of the consecutively evolutional process which involves countless times of genetic transformation.The irresistible process has never been interrupted since the earth came into...
【单选题】Which of the following is most probably the best title for the passage?
A.
Human Evolution Going Nowhere.
B.
Sex Ratio Changes in Human Evolution.
C.
Ways of Continuing Man's Evolution.
D.
The Evolutionary Future of Nature.