“I DIDN’T BREAK THE WINDOW,” JIM SAID.A.JIM DENIED BREAKING THE WINDOW...

Câu 30:“I didn’t break the window,” Jim said.A.Jim denied breaking the window. B.Jim told he didn’t break the window.C.Jim admitted breaking the window. D.Jim refused to have broken the window.oceanography Recent technological advances in manned and unmanned vehicles, along with breakthroughs in satellite

Read the passage and choose the best answer to the questions.

technology and computer equipment, have overcome some of the limitations of divers and diving equipment for scientistsdoing research on the great oceans of the world. Without a vehicle, divers often became sluggish, and their mentalconcentration was severely limited. Because undersea pressure affects their speech organs, communication amongdivers has always been difficult or impossible. But today, most oceanographers avoid the use of vulnerable human divers, preferring to reduce the risk to humanlife and make direct obervations by means of instruments that are lowered into the ocean, from samples taken from thewater, or from photographs made by orbiting satellites. Direct observations of the ocean floor can be made not only bydivers but also by deep-diving submarines in the water and even by the technology of sophisticated aerial photgraphyfrom vantage points above the surface of more than seven miles and cruise at depths of fifteen thousand feet. Inaddition, radio-equipped buoys can be operated by remote control in order to transmit data back to land-basedlaboratories via satellite. Particularly important for ocean study are data about water temperature, currents, and weather. Satellite photographs can show the distribution of sea ice, oil slicks, and cloud formations over the ocean. Mapscreated from satellite pictures can represent the temperature and the color of the ocean’s surface, enabling researchersto study the ocean currents from laboratories on dry land. Furthermore, computers help oceanographers to collect,organize, and analyze information from submarines and satellites. By creating a model of the ocean’s movement andcharacteristics, scientists can predict the patterns and possible effects of the ocean on the enviroment.Recently, many oceanographers have been relying more on satellites and computers than on research ships or evensubmarine vehicles because they can supply a greater range of information more quickly and more effectively. Some ofhumankind’s most serious problems, especially those concerning energy and food, may be solved with the help of observationsmade possible by this new technology.