207×128+473×204+532×439的值为( )。

脊索瘤起源于脊索组织，好发于上颈椎及骶椎，好发于40岁以上，发展缓慢，属良性肿瘤

骨网状细胞瘤起源于髓网状细胞，多见于青壮年，好发于长管状骨

骨纤维肉瘤，成年、老年均可发病，疼痛轻，转移较晚，预后较好

滑膜肉瘤起源于关节滑膜、腱鞘及滑囊。多见于20～40岁

骨巨细胞瘤好发于膝关节两端的骨端及桡骨远端

in completeness

restricted accessibility

difficulty of interpretation

limited quantity

In general, people talk about two groups of colors: warm colors and cool colors. (1) in psychology think that there are also two (2) of people: people who prefer warm colors and people who prefer cool colors.

The warm colors are red, orange and yellow. (3) there are warm colors and a lot of light, people usually want to be (4) . People think that red, (5) , is exciting. People who like to be with (6) like red. The cool colors are green, blue and violet. These colors, (7) warm colors, are relaxing. Where there are cool colors, people are usually (8) . People who like to spend time (9) often (10) cool colors.

Red may he exciting, but one researcher says that time seems to pass (11) in a room with warm colors than in a room with cool colors. He thinks that a warm color, such as red (12) orange, is a good color for a (an) (13) or restaurant. People who are relaxing or eating do not want time to pass (14) . Cool colors are better for offices or factories if people who are working there want time to pass quickly.

Researchers do not know (15) people think some colors are warm and others cool. (16) , almost everyone (17) that red, orange and yellow are warm and that green, blue and violet are cool. Perhaps warm colors (18) people of warm days and the cool colors remind them of cool days. Because in the north the sun is low in winter, the sunshine seems quite blue. Because the sun is (19) during summer, the hot sunshine (20) yellow.

置放在冷生理盐水中

置放在温生理盐水中

用塑料袋封闭后放入冰盒内

直接放在冰盒内

置放在冷水中

Old men are wise and should be respected.

Old men should be hidden in the cellar.

Old men know where young people could find grain.

Young people are not as foolish as old peopl

甲

乙

丙

丁

28

29

30

31

正确

错误

Current gym dogma holds that to build muscle size you need to lift heavy weights. (1) , a new study (2) at McMaster University has shown that a similar degree of muscle building can be achieved by using lighter weights. The secret is to pump air (3) you reach muscle fatigue.

The (4) are published in PLoS ONE.

" (5) grunting and straining to lift heavy weights, you can (6) something much lighter but you have to lift it until you can’t lift it (7) ," says Stuart Phillips, associate professor of kinesiology at McMaster University. "We’re convinced that (8) muscle means (9) your muscle to make new muscle proteins, a process in the body that over time (10) into bigger muscles. "

Phillips praised lead author and senior Ph.D. student Nicholas Burd for masterminding the project that showed it’s really not the weight that you lift but the fact that you get muscular fatigue that’s the (11) point in building muscle. The study used light weights that (12) a percentage of what the (13) could lift. The heavier weights were set (14) 90% of a person’s best lift and the light weights at a mere 30%o of what people could lift. "It’s a very light weight," says Phillips noting that the 80% 90% (15) is usually something people can lift from 5～10 times before fatigue sets in. At 30%, Burd reported that subjects could lift that weight at least 24 times (16) they felt fatigue.

"We’re (17) to see where this new paradigm will lead," says Phillips, adding that these new data have (18) significance for gym enthusiasts but more importantly for people with compromised skeletal muscle mass, (19) the elderly, patients with cancer, or those who are (20) from trauma, surgery or even stroke.