中国大学MOOC: With the battery terminals ___________, the result will be quite different.

Is there a ________________ that goes between terminals? A: transportation B: shuttle bus C: vehicle D: taxi stand

Originally designed to accept input from devices called ____, mainframes today are typically accessed by desktop computers. A: LCDs B: pods C: ports D: terminals

A context-free grammar G consists of four parts: a group of nonterminals, a group of terminals, a start symbol, and a group of (). A: sentence B: sentence pattern C: word D: Production

It is very important that we should not in protecting computer system. A: display our passwords for everyone to see B: open unidentified files C: leave computer terminals on while we are away from our desks D: all of the above

Which is wrong about long-term habituation and sensitization? A: long-term sensitization involves synaptic facilitation B: synthesis of mRNA and proteins are required for memory consolidation from short-term to long-term C: growth of new synaptic connections can be observed in long-term habituation D: both involve structural changes in the presynaptic terminals of sensory neurons

Which of the following processes does not involved in the signal propagation at a chemical synapse?<br/>16. (Part 06, medium) 105-Mid A: synaptic vesicles release neurotransmitters in the presynaptic terminal. B: neurotransmitters diffuse across the synaptic clef. C: Postsynaptic receptors are activated by the neurotransmitters. D: Vesicles transport neurotransmitters from the synaptic terminals to the soma in the postsynaptic side.

Watching TV is the most [u]      [/u] everyday activity, after work and sleep, in many parts of the world. 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '2015年6月 四级 卷二 选词填空', 'isMemberControl': 0, 'type': 181} A: decade B: common C: terminals

The following paragraph is incomplete. Choose the best sentence to make it complete. 选择合适的句子，完成段落。 There are a lot of terms used to describe computers. Most of these words imply the size, expected use or capability of the computer. ___________________________________. The most familiar type of microprocessor is the personal computer (PC). It is designed for general use by a single person. Another purpose for using a microprocessor is as a workstation. The computers used for this purpose have a more powerful processor, additional memory and enhanced capabilities for performing a special group of task, such as 3D Graphics or game development. A computer can also be used as a server. Servers usually have powerful processors, lots of memory and large hard drives. A fourth one, a main frame is the heart of a network of computers or terminals which allows hundreds of people to work at the same time on the same data.

John F. Kennedy International Airport is an international airport located in the borough of Queens in New York City, about 12 miles (19 km) southeast of Lower Manhattan. In 2011 it was the busiest international air passenger gateway to the United States, handling more international traffic than any other airport in North America. It is also the leading freight gateway to the country by value of shipments. In 2011, the airport handled 47.809,910 passengers, making in the 17th busiest airport in the world and sixth busiest in the United States in terms of passenger traffic. The New York States in terms of passenger traffic. The New York City metropolitan area’s JFK International, LaGuardia, and Newark International airports combine to create the largest airport system in the United States, second in the world in terms of passenger traffic, and first in the world in terms of total flight operations. In the last few years it has made extensive improvements to terminals, roadways and inter-terminal transportation. Over ninety airlines operate out of JFK. It is the base of operations for Jet Blue Airways and is a major international gateway hub for American Airlines and Delta Air Lines. In the past, it has been a hub for Eastern Air Lines, National Airlines, Pan American World Airways and Trans World Airlines.