Identical twins possess exactly the same set of genes. -找考题网

单项选择题According to the author, which of the following contributes to the development of political ideology during adolescence

A. Conscious recognition by the adolescent of his or her own naivete.
B. Thorough comprehension of the concept of ordination.
C. Evaluation by the adolescent of the general principles encompassing his or her specific political ideas.
D. Intuitive understanding of relationships among various components of society.

单项选择题All of the following are mentioned as types of evidence concerning handedness EXCEPT ______.A. ancient artwork B. asymmetrical skullsC. studies of tool use D. fossilized hand bones

Archaeological records--paintings, drawings, and carvings of humans engaged in activities involving the use of hands--indicate that humans have been predominantly right - handed for more than 5,000 years. In ancient Egyptian artwork, for example, the fight-hand is depicted as the dominant one in about 90 per cent of the examples. Fracture or wear patterns on tools also indicate that a majority of ancient people were fight - handed.
Cro-Magnon cave paintings some 27,000 years old commonly show outlines of human hands made by placing one hand against the cave wall and applying paint with the other. Children today make similar out lines of their hands with crayons on paper. With few exceptions, left hands of Cro-Manganese are displayed on cave walls, indicating thai the paintings were usually done by right-handers.Anthropological evidence pushes the record of handedness nearly human ancestors back to at least 1.4 million years ago. One important line of evidence comes from flaking patterns of stone cores used in tool making: implements flaked with a clockwise motion (indicating a right- handed toolmaker) can be distinguished frp, those flakea wan a counter- clockwise rotation (indicating a left -handed toolmaker).
Even scratches found on fossil human teeth offer clues. Ancient humans are thought to have cut meat into strips by holding it between their teeth and slicing it with stone knives, as do the present -day Inuit. Occasionally the knives slip and leave scratches on the users’ teeth. Scratches made with a left - to - right stroke direction (by right-handers) are more common than scratches in the opposite direction (made by left-handers).
Still other evidence comes from cranial morphology: scientists think that physical differences between the right and left sides of the interior of the skull indicate subtle physical differences between the two sides of the brain. The variation between the hemispheres corresponds to which side of the body is used to perform specific activities. Such studies, as well as studies of tool use, indicate that right - or left – sided dominance is not exclusive to modem Homo sapiens. Populations of Neanderthals, such as Homo erects and Ho mo habilis, seem to have been predominantly right -handed, as we are.

单项选择题Compared with the other racial and ethnic minority groups, ______ lead a relatively better-off life in the US.

A. the blacks

B. the Asian Americans
C. the Indians

D. the Hispanics

单项选择题The passage implies that in mystery stories, love often ______.

A. turns into hatred at last
B. serves as incentives for murders
C. serves as the end of the story
D. beats justice

单项选择题Which programming language is designed for the instruction of youngsters

A. B AS IC.
B. FORTRAN.
C. ALGOL.
D. LOGO.