Tension is one of the five fundamental loading conditions.

听力原文： During a state of deep relaxation, several physiological changes take place in the body: the body's oxygen consumption is reduced; the heart beat decreases; muscle tension and sweating ease, and there is decreased sympathetic nervous system activity. (32) This restful state not only allows the body to repair and restore itself but it has a calming effect on the consciousness. How to achieve this state of relaxation, however, is a matter of opinion. (33) A recent report by Dr. David Holmes of the University of Kansas in the journal American Psychologist said that simple sitting in an armchair has just as many beneficial characteristics for the body as meditation does. Researchers of other relaxation techniques disagree . (34) These experts believe that more structured techniques, such as meditation, lead to a condition of deep relaxation. The debate goes on, but one thing appears to be clear: the relaxation response can be reached by a number of methods, and the methods themselves are not as important as getting there. One day, one method may work best; on another day, an alternative method may be more appropriate. (35) Once you are aware of all the methods, you can find the one that works best for you. Some of the relaxation techniques are meditation, self-analysis and progressive muscle relaxation. Although these techniques may not, in the end, produce more of a relaxation response than just sitting quietly in a chair, (35) they have the added benefit of structure and discipline, and for these reasons appear to be more effective for most individuals.

32. What will happen when a person is in a state of deep "relaxation"？

33.What did Dr. David Holmes say about "relaxation" in American Psychologist？

34.What do the opponents of Dr. David Holmes believe？

35.What does the speaker think of "relaxation techniques" such as meditation？

(7)

A．The body will take in more oxygen.

B．The heart will beat more frequently.

C．Muscles will become tense and the body will sweat easily.

D．The consciousness will become more or less calmed.

The main advantage of a Chinese stopper over the one line stopper is that it ______.

A.will not jam on the mooring line

B.is stronger

C.is easier to use when under heavy tension

D.is safer to use when under heavy tension

ne recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust the _____.

A.pilot valve opening

B.compensating needle valve

C.compensating spring tension

D.accumulator spring tension

tically from a tree, with one monkey a few meters higher than the other. What is the ratio of the tension in the vine above the upper monkey to the tension in the vine between the two monkeys？

A、2

B、0.5

C、1

D、1.5

E、More information is required.

ne recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust the

A.pilot valve opening

B.compensating needle valve

C.compensating spring tension

D.accumulator spring tension

To “EASE” A LINE means to ___ .

A.cast off

B.double up so that one line does not take all the strain

C.pay out line to remove most of the tension

D.slack it off quickly

A、the amplitude of the muscle shorten will be increased.

B、the active tension of the muscle will increae.

C、the latency between the action potential initiation and the muscle shorting will be longer.

D、the velocity of the muscle shorten will be decreasd.

A、the active tension of the muscle will increae.

B、the latency between the action potential initiation and the muscle shorting will be longer.

C、the velocity of the muscle shorten will be decreasd.

D、the amplitude of the muscle shorten will be increased.

cal ropes at each end. How far would the worker stand from one of the supporting ropes to produce a tension of 550 N in that rope？

A、1.4 m

B、2.0 m

C、2.5 m

D、2.7 m

E、3.7 m

F、1.7 m

Which of the following statements is INCORRECT？

A．Ukraine has nearly 45 million people.

B．Ukraine is one of the largest nations in Europe.

C．Ukraine is in a struggle with Western Europe.

D．Ukraine has tension at home right now.