单选题I had never seen so many people with so many disabilities. I returned home, silently ______. thinking how fortunate we really were.

单选题Scientists have been struggling to find out the reason behind blushing （脸红）。Why would humans evolve（进化） a 21__________ that puts us at a social disadvantage by 22__________ us to reveal that we have c

单选题Which of the following is NOT included as source of humidity in this passage?

单选题He is not under arrest, _____ any restriction on him.

单选题 Likewise, soot and smoke from fire contain a multitude of carcinogens.

单选题While watching television, ______. A. the telephone rang B. we heard the telephone ring C. we heard the telephone rang D. the telephone was rung

单选题Polar explorers have to be extremely ______ to endure the climate and other hardships of various kinds.

单选题In order to keep track of the hacker, ______.

单选题What is the main purpose of this article?

单选题They ______ in spite of the extremely difficult conditions.

单选题When John said that he would invite us all to a banquet, I think he ______ generous. Dont believe him. A) was only B) was only being C) is only D) has only been

单选题I just met her______on the way home from the bookstore.

单选题Towards the issue of Hindu-Muslim relations, the writer's attitude can be said to be ______.

单选题After decades of decline, the share of mothers who stay home with their children has 29 risen over the last several years, a new report by the Pew Research Center has found. Pew 30 the rise of stay-at-home mothers to a mix of economic and societal factors. The 31 majority of married stay-at-home mothers, 85%, say they are doing so by choice in order to care for their families. That rate is much lower for single stay-at-home mothers, at 41%. The report also found a 32 in women working because of the recession, a trend that has 33 as the economy recovers. Pew cited an increase in immigrant families, for whom it is more 34 to have a mother stay at home with her children, and an increase in the number of women who said they were disabled and unable to work. A companion public opinion survey by Pew, from 2013, found that mothers are much more likely than fathers to have 35 work hours, take a significant amount of time off, quit a job or, by a small 36 turn down a promotion in order to care for a child or family member. A second Pew survey, taken this year, found most in the general public think that children are better off with a parent at home. 'This has important 37 for the day to day lives of children,' said D'Vera Cohn, the report's author. The report also looked at how stay-at-home versus working moms use their time. Those at home spend more time on housework, child care, 38 and sleep. A. reduced E. interim I. leisure M. abnormally B. impetus F. steadily J. drop N. attributed C. vast G. common K. intuitions O. margin D. implications H. cling L. lingered

单选题By "the pendulum is swinging too far", Ian Perry probably means

单选题Under the guidance of their teacher, the pupils are building a model boat ______ by steam:

单选题 Sorry I'm late. I ______ have turned off the alarm clock and gone back to sleep again.

单选题Ms. Rice, with customary class, simply expressed hope that this episode wouldn't ______ the charity in spite of the previous scandal. A. taint B. enhance C. sprain D. sponsor

单选题 Paper produced every year is four times ______ the weight of the world's production of vehicles.

单选题He has been plowing through a biography of Lyndon Johnson and a ______ of Henry Kissinger.