【题目】V icwed up close, a shark skin bristles wit h(充满) tiny teeth or "denticles" which aid s wimming. Engineers have already copied the r oughness of shark skm when designing swim suits and even racing cars. But the denticles have never been so well reproduced, says a rep ort...
Viewed up close, a shark's skin bristles with(充满) tiny teeth or “denticles(小齿)" which aid swimming.Engineers have tried to mimic(模仿) the roughness of shark skin when designing swim suits and even racing cars. But the denticles have never been so well reproduced before, says a re...
Oceanic, but sometimes found close inshore. Usually in surface waters, down to about 150 m. Coastal, epipelagic at 1->500 m. Feeds on bony fishes, other sharks, cephalopods; larger individuals may feed on larger prey such as billfish and small cetaceans. Ovoviviparous, embryos feeding on ...
I glided forward, hoping for a closein shot. My arms were extended in front of me—my left for balance, my right holding the gun, which was loaded with a stainless steel shaft and barb. I drifted easily over the...
shark- any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales genus Rhincodon,Rhincodon- whale sharks Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc. ...
B阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出最佳选项。Viewed up close, a shark's skin bristles with(
【题目】DViewed up close, a shark skin bristles with(充满) tiny teeth or "denticles" which aid swimming. Engineers have already copied the roughness of shark skin when designing swim suits and even racing cars. But the denticles have never been so well reproduced, says a report in the ...
The meaning of SHARK is any of numerous mostly marine cartilaginous fishes of medium to large size that have a fusiform body, lateral branchial clefts, and a tough usually dull gray skin roughened by minute tubercles and are typically active predators so
Stuart Cove’s Shark Adventure™ is a 2-tank dive program which introduces thrill seeking divers to wild sharks and provides you a close up look at these magnificent and misunderstood creatures. There are currently four sites where we dive with the sharks. You will dive either the combination...
I glided forward, hoping for a closein shot. My arms were extended in front of me—my left for balance, my right holding the gun, which was loaded with a stainless steel shaft and barb. I drifted easily over the ...