What is the common phonetic symbol for the following combinations underlined: scan, sacrifice, scramble?

A . Factor of safety B . Number of wires per strand C . Number of strands per wire rope D . Number of wires in the core

A .  Ensure that a stateful firewall allows only HTTP traffic destined for valid web server IP addresses. B .  Ensure that a firewall has SYN flood and DDoS protection applied specifically for valid web servers. C .  Ensure that your firewall enforces HTTP protocol compliance to ensure that only valid flows are allowed inand outof your network. D .  Ensure that HTTP is always authenticated. E .  Ensure that your web server is in a different zone than your backend servers such as SQL and DNS.

A . Shape of the piston crowns B . Increasing the compression ratios C . Increasing the piston crowns D . Increasing the turbocharger gear ratio

A . Number of wires in the inner core B . Number of strands per wire rope C . Tensile strength of the wire D . Number of wires per strand

A . non-synchronous electric motor B . synchronous electric motor C . fully enclosed electric motor D . watertight electric motor

A．By air. B．By car. C．By sea.

A.Within time B.Within time and cost C.Within time, cost and technical performance requirements D.Within time, cost, performance and accepted by the customer/user E.None of the above

A.SSRAMPSI=10 and SSRAMPSD=20 B.SSRAMPSI=10 and SSRAMPSD=10 C.SSRAMPSI=5 and SSRAMPSD=2 D.SSRAMPSI=2 and SSRAMPSD=5

A．IEEE 802．1 B．IEEE 802．2 C．IEEE 802．3 D．IEEE 802．11

This story is probably apocryphal, but it illustrates well the attitudes of the time. (47) Many people accept Darwin's view of how we came into being that our bodies evolved through the process of natural selection acting on our genes. However, Darwin believed evolution was responsible for far more than just our physical characteristics. He saw it as the major influence in shaping our psychology. In- deed, he predicted that "in the distant future, psychology will be based on a new foundation". (48) To proponents of concepts like free will and personal responsibility, such an idea seems absurd. (49) Their research has revealed increasing evidence that the human mind is made up of innate mechanisms, which control everything from the way we perceive time and space, to how we learn survival techniques and choose mates. (50) Steven Pinker, Professor of Cognitive Science at the Massachusetts Institute of Technology, likens language ability to computer software, "children learn a new word every 90 minutes of their waking life for years, then they have to figure out how to string them together using a kind of mental computer program. The essence of human language is the ability to convey new ideas by putting words together in different combinations. Since we all have this language 'software' in our minds, we can figure out what others are saying by the meanings of the words and the order in which they are arranged." A. Today, we are more comfortable with out past. B. "And, if it is true, let us hope it does not become public knowledge." C. But a growing number of scientists are questioning the extent to which our behavior. is controlled by our culture. D. Many people are calling for controls on cloning immedicte1y before the practice is abused. E. The foundation was, of course, his theory of evolution. F. Nowhere is this more obvious than our innate ability to learn languages. (46)

For some fifty million years, despite all its eccentricities, the sea cucumber has subsisted on its diet of mud. It is adaptable enough to live attached to rocks by its tubefeet, under rocks in shallow water, or on the surface of mud flats. Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present. Sea cucumbers come in a variety of colors, ranging from black to reddish-brown to sand-color and white. One form. even has vivid purple tentacles. Usually the creatures are cucumber-shaped hence their name and because they are typically rock inhabitants, this shape, combined with flexibility, enables them to squeeze into crevices where they are safe from predators and ocean currents. Although they have voracious appetites, eating day and night, sea cucumbers have the capacity to become motionless and live at a low metabolic rate — feeding sparingly or not at all for long periods, so that the marine organisms that provide their food have a chance to multiply. If it were not for this faculty, they would devour all the food available in short time and would probably starve themselves out of existence. But the most spectacular thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs. When attacked, it squirts all its internal organs into the water. It also casts off attached structures such as tentacles. The sea cucumber will eviscerate and regenerate itself when it is attacked or even touched; it will do the same if the surrounding water temperature is too high or if the water becomes too polluted. The passage mainly discusses A．the reason for the sea cucumber's name. B．what makes the sea cucumber unusual. C．how to identify the sea cucumber. D．places where the sea cucumber can be.

A．A.3 dB B．B.5dB C．C.6dB D．D.8dB E．E.10dB

A．IEEE802.1 B． IEEE802.2 C． IEEE802.3 D． IEEE802.11

A．trachy- B．trachelo- C．teacho- D．tracheo-