远点（far point of vision）

A . is used mostly by towing vessels B . has a maximum depth of 14 feet (4.3 meters) at MHW C . West Gap has a controlling depth of 24 feet D . is entered through the East Gap or the West Ga

A . Needs to use Inverse ARP. B . Maps a single IP subnet per DLCI. C . Maps a single IP subnet across multiple DLCIs. D . Resolves NBMA (non broadcast multi access) split horizon issues. E . Requires use of the frame-relay map command. F . None of the above

A . the lubrication B . the cooling C . the moisture separation D . the valve

A . concern B . concerns C . concerned D . is concerned

A . having engaged in fishing B . engaging in fishing C . engaged in fish D . engaged in fishing

A、message B、theory C、version

A . have been completed B . has been completed C . has completed D . have completed

A.world B.universe C.sky

A．the...an.../ B．/...the...the C．the...the...the D．/...an.../

As the mountains sank, ocean water charged over the lowest arts of the remaining land, forming a series of twisting inlets and lagoons (咸水湖) . The highest parts of the former mountain range, nearest the shore, remained as islands. ______【47】Marine fossils found here were 225 feet above sea level, indicating the level of the shoreline prior to the glacier. The 2, 500-mile-long rocky coastline of Maine keeps watch over nearly two thousand islands. Many of these islands are tiny and uninhabited, but many are home to thriving communities. Mt. Desert Island is one of the largest, most beautiful of the Maine coast islands. Measuring 16 miles by 12 miles, Mt. Desert Island was essentially formed as two distinct islands. ______【48】. For years, Mt. Desert Island, particularly its major settlement, Bar Harbor, afforded summer homes for the wealthy. Recently though, Bar Harbor has become a rapidly growing arts community as well. But the best part of the island is the unspoiled forest land known as Acadia National Park. Because the island sits on the boundary line between the temperate (温带) and sub-Arctic zones, the island supports the plants and animals of both zones as well as beach, inland , and alpine (高山 的) plants. ______【49】The establishment of Acadia National Park in 1916 means that this natural reserve will be perpetually available to all people, not just the wealthy. Visitors to Acadia may receive nature instruction from the park naturalists as well as enjoy camping, cycling, and boating. Or they may choose to spend time at the archeological museum, learning about the Stone Age inhabitants of the island. The best view on Mt. Desert Island is from the top of Cadillac Mountain. ______【50】. From the summit, you can gaze back toward the mainland or out over the Atlantic Ocean and contemplate the beauty created by a retreating glacier. A. It also lies in a major bird migration lane and is a resting spot for many birds. B. Mt. Desert Island is one of the most famous of all of the islands left behind by the glacier. C. The wealthy residences of Mt. Desert Island selfishly keep it to themselves. D. The term comes from the activity of the Ice Age. E. This mountain rises 1, 532 feet, making it the highest mountain on the Atlantic seashore. F. It is split almost in half by Somes Sound, a deep and narrow stretch of water seven miles long. (46)

A．the volume of the solution B．the nature of the solute C．the molality of the solute in the solution D．the temperature of the solution

是 否

At one time,() a romantic vision of the homeless wanderers who lived carefree lives and answered to no one. A.there is B.there are C.there were D.there was