Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human "guinea pig" is tested using a regular tool. Measurements are taken of the amount Of work done, and the buildup of heat in the body. Twisted joints and stretched muscles can not perform as well, it has been found, as joints and muscles in their normal positions. The same person is then tested again, using a tool designed according to the suggestions made by Dr. Tichauer. All these tests have shown the great improvement of the new designs over the old.
One of the electronic instruments used by Dr. Tichauer, the myograph (肌动记器), makes visible through electrical signals the work done by human muscle.
Another machine measures any dangerous features of tools, thus proving information upon which to base a new design. One conclusion of tests made with this machine is that a tripod (三脚架) stepladder is more stable and safer to use than one with f
A. they are twisted and stretched
B. they are in their normal positions
C. they are tested with a human "guinea pig"
D. they are tested with electronic instruments
Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human "guinea pig" is tested using a (31) tool. Measurements are taken (32) the amount of work done, and the buildup of heat in the body. (33) joints and stretched muscles cannot (34) as well, it has been found, (35) joints and muscles in their (36) positions. The same person is then tested again, using a tool designed according to the suggestions made by Dr. Tichauer. All these tests have shown the great (37) of the new designs over the old.
One of the electronic instruments used by Dr. Tichauer, the myograph (肌动描记器), (38) visible through electrical signals the work done by human muscle. Another machine (39) any dangerous features of tools, thus proving information upon (40) to base a new design. One (41) of tests made with this machine is that a tripod stepladder is more A. Distracted
B. Twisted
C. Exaggerated
D. Tilted
我来回答: