单选题If a person finds getting up early a problem, most probably ______

单选题"In every known human society, the male"s need for achievement can be recognized. In a great number of human societies men"s sureness of their sex role is tied up with their right, or ability, to practice some activity that women are not allowed to practice. Their maleness in fact has to be underwritten by preventing women from entering some field or performing some feat." This is the conclusion of the anthropologist Margaret Mead about the way in which the roles of men and women in society should be distinguished. If talk and print are considered it would seem that the formal emancipation of women is far from complete. There is a flow of publications about the continuing domestic bondage of women and about the complicated system of defenses which men have thrown up around their hitherto accepted advantages, taking sometimes the obvious form of exclusion from types of occupation and sociable groupings, and sometimes the more subtle form of automatic doubt of the seriousness of women"s pretensions to the level of intellect and resolution that men, it is supposed, bring to the business of running the world. There are a good many objective pieces of evidence for the erosion of men"s status. In the first place, there is the widespread postwar phenomenon of the woman Prime Minister, in India, Sri Lanka and Israel. Secondly, there is the very large increase in the number of women who are working, especially married women and mothers of children. More diffusely there are the increasingly numerous convergences between male and female behaviors: the approximation to identical styles in dress and coiffure, the sharing of domestic tasks, and the admission of women to all sorts of hitherto exclusively male leisure-time activities. Everyone carries round with him a fairly definite idea of the primitive or natural conditions of human life. It is acquired more by the study of humorous cartoons than of archaeology, but that does not matter since it is not significant as theory but only as an expression of inwardly felt expectations of people"s sense of what is fundamentally proper in the differentiation between the roles of the two sexes. In this rudimentary natural society men go out to hunt and fish and to fight off the tribe next door while women keep the fire going. Amorous initiative is firmly reserved to the man, who sets about courtship with a club.

单选题Why does the author mention that the Russians killed the majority of adult Aleuts?

单选题Doctor: What seems to be the matter?Patient: Well, my heartbeat is fast and I have trouble breathing recently.Doctor: ______ Your weight is giving much burden on your heart.

单选题As pointed out in the text, "reciprocal altruism theory" and "strong reciprocity theory" are ______.

单选题The good news to both sides of the debate is that ______.

单选题The ______ of the spring water attracts a lot of visitors from all over the country.

单选题Mary is 60 years old,_______she still plans to take part in the race.

单选题All the following share one similarity EXCEPT______.

单选题We all ______ the achievements he has made in his experiments.

单选题In most South American countries rail transport is plagued by operational problems as well as by obsolete equipment.

单选题The amount of water used in the manufacturing process is enormous, but the amount wasted is______.

单选题Writing stories and articles ______ what I'm fond of.

单选题—Do you know______? —They moved here soon after their son was born.

单选题Of the 1200 million people who call themselves Chinese,______a very small number speak what is referred to as standard Chinese. A.none but B.but for C.all but D.but then

单选题The door was jammed and no matter how hard I tried I could't get it open.

单选题They have ______ the price of the coat from $ 50 to $ 25.

单选题Most of the students went to see the film. There are only ______ students studying in the classroom.