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Paragraf Tamamlama 124. Soru

Bu Testin Birincisi Bengu

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124.

One of the wonders of modern medicine is spare-part surgery. This enables many of our joints to be replaced by man-made ones of stainless steel alloys, or plastics. A common joint replacement is that of the hip, but others such as elbow, shoulder and knee joints can also be replaced with artificial ones. The materials used in spare-part surgery have to be inert. ……….. . It would be very unpleasant to end up with a rusty hip joint.

That is, they mustn't cause the body's natural defences to reject them, and the materials must not corrode

People from as recently as a century ago would be amazed by what can be done now

Though artificial arms and legs have been common for centuries, these internal replacements are a new innovation

Modern surgery is able to cure most kinds of cancer if they are detected early enough

In spare parts for household appliances, of course, this is far less important