[不定项选择题]A.腹部触之柔软
A.板状腹
B.触之如揉面感
C.腹部紧张度减弱
D.腹部紧张度消失
E.正常人

Drawing on biomechanics and other sports science, Olympic hopefuls target just the right muscles and moves. Olympians of yesteryear shared the same goal, but they would hardly recognize today’s training techniques. To achieve to Olympian ideal of "faster, higher, stronger," coaches now realize, athletes don’t have to train more but they do have to train smarter. That’s why, these days, cross-country (Nordic) skiers kneel on skateboards and tug on pulleys to haul themselves up a ramp.
By analyzing every motion that goes into a ski jump or a luge run, the science of biomechanics breaks down events into their component parts and determines which movements of which muscles are the key to a superlative performance. Knowing that is crucial for a simple hut, to many coaches and trainers, unexpected reason: it turns out that although training for general conditioning improves fitness, the best way to boost performance is by working the muscles and prac

One of the most remarkable things about the human mind is our ability to imagine the future.In our (21) we can see what has not yet happened.For example,while we are looking forward to (22) a new place or country,we (23) what it will be like.We predict(预料) the (24) people will eat,dress and act.Of course,we do not always predict things (25).Things are often very different from the way we (26) them to be.One of the (27)dreams in history is the dream of the German scientist,Kekule,who had been (28) to work out a very difficult problem in physics.He had (29) and analyzed(分析) the problem from every angle(角度) for days,but there (30) to be no way of (31) out the answer.Then one night he went to bed and dreamed.When he (32) up,he realized that he knew the answer.He had solved the problem in his (33) .The hypnotist(催眠者) sat in the chair opposite him and spoke (34) :I want you to concent rate on my voice.Think about (35) You know nothing but my voice.And as you pay attention to my voice,y
A. funny
B. dull
C. famous
D. silly