23. What does the underlined word "They" in the last paragraph refer to?A. Sea animals.B. The seas.C. The satellites.D. Many scientists.24. What can we learn from the text?A. It is difficult to build a navigable submarine.B. The seas have a strong influence on our future....
Because the stands are so far from land, they are home to many plants and animals that can't be found anywhere else.The scientists were exploring the se a floor around the islands, using a special submarine called Alvin to make maps and take pictures and videos of the se a floor. ...
The Karen had been sailing in a convoy to Russia when she was torpedoed by an enemy submarine. This was later confirmed by naval official at the Ministry of Defiance after the Elkor had returned home. All the items that were found were sent to the War Museum. New words and expressions ...
Nothing gets into or out of the submarine except through the hatches (舱口) , and nothing gets into or out of a cell except through "gates" in its cell membrane.What can be said about cell first? It is that they are very small. Your body has about 100 trillion ...
emergency surfacing, submarines can rise so quickly they are driven partially out of the water. Submarine parents also remain out of sight, yet able to pop up in the case of an emergency. I admit I'm a submarine mom. My job as a parent is to have fun with my daughters while letting...
They have been terrific about asking me how I was holding up as well. We setup communication plan over text and VHF radio to be able to get messages to each other. Now as I look out the window I see that one of those boats has snapped a piling off and is violently rocking. I see...
and terrified of every sound. Somebody decided it would be a good idea if I slept with a transistor radio on my pillow, tuned to the all-news-all-the-time station. It was 1960, and I was falling asleep to interviews about the build-up of nuclear submarine b...
Modern submarine torpedoes come in two variants: thermal and electric. ... A gas turbine or axial piston engine converts this fuel into torque that spins counter-rotating
Eventually, they made it downtown to DC for July 4th and Rolling Thunder, all around Baltimore shadowing theBaltimore Kinetic Sculpture Race, and up and down the W&OD trail more times than I can count. Even though they spent most of the last few years in trunk of my car, then just in...