单选题Police have planned a reconstruction of the crime tomorrow in the hope that this will ______ the memory of the passers-by.

单选题You"ve already missed too many classes this term. You ______ four classes just last week.

单选题You may get away with dishonesty for a while, but sooner or later you'll be ______.

单选题It ______ to me that he was the first person to help us in those difficult times

单选题The company is going to hand ______ the free samples tomorrow.

单选题The gentleman ______ a cherub(小天使) with his letter.

单选题I don't think that his watch is ______. A. worth the price B. worthy the price C. worthy to buy D. worth of the price

单选题Rita: How about some more cake, dear? Alex: ______

单选题They tossed your thoughts back and forth for over an hour, but still could not make ______ of them.(2013年北京航空大学考博试题)

单选题He planned to go to France to ______ his art of painting.

单选题It has been cold this month, but today is a(n) ______ ; it's warm and sunny.

单选题The subject may be (approached in) several directions, but (the scene) cannot be fully appreciated (from) any (one vantage) point.

单选题On his way home he was killed in a car______.

单选题The body also needs daily doses of sunlight to help ______ Vitamin D, crucial for maintaining body functions and for the health of muscles and bones.

单选题A suitable title for the articles is ______.

单选题The experiment ended in failure ______the lack of money.

单选题Want to know how long you or your aging parents will live? One simple 1 of wellbeing and longevity among older people is their walking speed, new research shows. In an analysis of nine studies 2 more than 34,000 people aged 65 and older, faster walking speeds were 3 with living longer: Predicted years of remaining life for each age and both sexes increased 4 gait-speed increased, with the most significant gains after age 75. In addition, researchers found that predicting survival based on gait speed was as 5 as predictions 6 on age, sex, chronic conditions, smoking history, blood pressure, body mass index and hospitalization. "My hope is that we begin to think about ways to 7 the health and function of older people that goes 8 diseases," says lead researcher Stephanie Studenski, a geriatric physician at the University of Pittsburgh, 9 analysis appears today in the Journal of American Medical Association. "Functional status (walking speed) is an important reflection of health." Walking is a 10 tool to measure well-being, Studenski says, 11 it requires body support, timing and power, and places demands 12 the brain, spinal cord, muscles and joints, heart and lungs. Slowing down is associated with getting older. By age 80, gait speed is approximately 10% to 20% 13 than in young adults, she says. The findings can provide doctors with an inexpensive, safe and simple way of measuring performance 14 can help 15 health problems, she says, and in many cases 16 treatments that can improve well-being, 17 disabilities and help the elderly 18 independence. "I think it"s a very useful tool, and some physicians already use it," says Evan Hadley, associate director of geriatrics at the National Institute on Aging. "It"s 19 universal, though. This study 20 show walking speed is a very strong predictor of survival."