单选题Philip Roth was hailed as a major new author in 1960.

单选题Mr. Johnson evidently regarded this as a great joke.

单选题An educationist should understand children's {{U}}psychology{{/U}} very well.

单选题When a liquid boils, it becomes a gas.A. vaporB. dangerC. fuelD. bubble

单选题Packaged, processed and restaurant foods are known to be

单选题It is well-known that time is money. That is the reason why almost everyone Umakes full use of/U their time.

单选题I have been trying to quit smoking.

单选题This is the identical room we stayed in last year.

单选题The president proposed that we should bring the meeting to a close.A. statedB. saidC. announcedD. suggested

单选题The illegal driver ignored the red traffic light and ran right into a car.A. brokeB. disregardedC. noticedD. misunderstood

单选题There are some things in the class the teachers will not put up with.A. tolerateB. contributeC. resistD. prohibit

单选题I know people who find it practically impossible to give up smoking.

单选题She {{U}}gave up{{/U}} her job and started writing poetry.

单选题Preventing Child Maltreatment Child maltreatment is a global problem with serious life-long consequences. There are no reliable global estimates for the prevalence of child maltreatment. Data for many countries especially low-and-middle-income countries, are lacking. Child maltreatment is complex and difficult to study. Current estimates vary widely depending on the country and the method of research used. Nonetheless, international studies reveal that approximately 20 % of women and 5-10 % of men report being sexually abused as children. While 25-50 % of all children report being physically abused. Additionally, many children are subject to emotional abuse (sometimes referred to as psychological abuse). Every year, there are an estimated 31,000 homicide deaths in children under 15. This number underestimates the true extent of the problem, as a significant proportion of deaths due to child maltreatment are incorrectly attributed to falls, bums and drowning. Child maltreatment causes suffering to children and families and can have long-term consequences. Maltreatment causes stress that is associated with disruption in early brain development. Extreme stress can impair the development of the nervous and immune systems. Consequently, as adults, maltreated children are at increased risk for behavioral, physical and mental health problem. Via the behavioral and mental health consequences, maltreatment can contribute to heart disease, cancer, suicide and sexually transmitted infections. Beyond the health consequences of child maltreatment, there is an economic impact, including cost of hospitalization, mental health treatment, child welfare, and longer-term health cost. A number of risk factor for child maltreatment have been identified. These risk factors are not present in all social and cultural contexts, but provide an overview when attempting to understand the causes of child maltreatment. It is important to emphasize that children are the victims and are never to blame for maltreatment. A number of characteristics of an individual child may increase the likelihood of being maltreated, such as being either under four years old or an adolescent, being unwanted, or failing to fulfill the expectations of parents and having special need, crying persistently or having abnormal physical features

单选题An educationist should understand children's psychology very well. A. mind B. heart C. brain D. physics

单选题The movie has a satisfying ending.

单选题Keep your room {{U}}tidy{{/U}}. A.messy B.organized C.beautiful D.neat

单选题Unlike gases, liquids are difficult to compress because there is practically no free space between molecules.

单选题3. A Gay Biologist Molecular (分子的) biologist Dean Hammer has blue eyes ,light brown hair and a good sense of humor. He smokes cigarettes, spends long hours in an old laboratory at the US National Institute of Health. He also happens to be openly, matter - of - factly gay. What is it that makes Hammer who he is? What accounts for the talents and traits that make up anyone's personality? Hammer is not content merely to ask such questions; he is trying to answer them as well. A pioneer in the field of molecular psychology, Hammer is exploring the role genes play in governing the very core of our individuality. To a remarkable extent, his work on what might be called the gay, thrill--seeking and quit--smoking genes reflects how own genetic predispositions(倾向). That work, which has appeared mostly in scientific journals, has been gathered into an accessible and quite readable form in Hammer' s creative new book, Living with Our Genes. "vou have about as much choice in some aspect of your personality. "Hamer and co - author Peter Copeland write in the introductory chapter, "as you do in the shape of your nose or the size of your feet. " Until recently, research into behavioral genetics was dominated by psychiatrists and psychologists, who based their most conclusions about the importance of genes on studies of identical twins. For example, psychologist Michael Bailey of Northwestern University famously demonstrated that if one identical twin is gay, there is about a 50% likelihood that the other will be too. Seven years ago. Hamer picked up where the twin studies left off, homing in on (目标追踪) specific strips of DNA that appear to influence everything from mood to sexual orientation. Hamer switched to behavioral genetics from basic research, "after receiving his doctorate from Harvard, he spent more than a decade studying the biochemistry of a protein that cells use to metabolize (使新陈代谢) heavy metals like copper and zinc. As he was about to turn 40, however, Hamer Suddenly realized he had learned as much about the protein as he cared to. "Frankly, I was bored, "he remembers, "and ready for something new. /

单选题The land crab a forest-floor scavenger native to tropical America, migrates to the water to breed.A. dieB. swimC. mateD. hatch