Given a header in an HTTP request： X-Retries：4  Which two retrieve the value of the header from a given ServletRequest request？ （）

A . Request.getHeader（"X-Retries"） B . Request.getIntHeader（"X-Retries"） C . Request.getRequestHeader（"X-Retries"） D . Request.getHeaders（"X-Retries"）.get（0） E . Request.getRequestHeaders（"X-Retries"）.get（0）

A .  ${func（1）} B .  ${foo：func（4）} C .  ${func：foo（2）} D .  ${foo（5）：func} E .  ${func：foo（“easy”）} F .  ${func：foo（“3”）.name}

A . Physically press the appropriate button on the system. B . Physically disconnect and reconnect the power cable on the system. C . Log into the IVM using a Web Browser, select the managed-system and select the Power on option from the Operations menu. D . Log into the HMC using a Web Browser, select the managed-system and select the Power on option from the Operations menu.

A . when row directories need more row entries B . when there is row migration in the data block C . when there is an increase in the PCTFREE value for the data block D . when more transaction slots are required than are initially configured

A .  response.set Header （“X-MyHeader”. “34”）： B .  response.addHeader （“X-MyHeader”. “34”）： C .  response. Set Header （new Http Header （“X-MyHeader”. “34”））： D .  response.addHeader（new Http Header （“X-MyHeader”. “34”））： E .  response. addHeader （new Servlet Header （“X-MyHeader”. “34”））： F .  response. setHeader （new Servlet Header （“X-MyHeader”， “34”））：

A . http：//www.example.com/SCWCDtestApp/test.jsp B . http：//www.example.com/SCWCDtestApp/WEB-INF/test.jsp C . http：//www.example.com/SCWCDtestApp/WEB-WAR/test.jsp D . http：//www.example.com/SCWCDtestApp/Customer/test.jsp E . http：//www.example.com/SCWCDtestApp/META-INF/test.jsp F . http：//www.example.com/SCWCDtestApp/Customer/Update/test.j

A .  session.get Resource （“/WEB-INF/myconfig.xml”） B .  request.get Resource （“/WEB-INF/myconfig.xml”） C .  context.get Resource （“/WEB-INF/myconfig.xml”） D .  get Class （）.get Resource （“/WEB-INF/myconfig.xml”）

A . ${func（1）} B . ${foo：func（4）} C . ${func：foo（2）} D . ${foo（5）：func} E . ${func：foo（"easy"）} F . ${func：foo（"3"）.name}

A . the scavenging air B . the exhaust gases C . the mixed air D . the spray oil

A . increasing the shaft RPM prior to release B . using a pelican hook for quick release C . using preventers D . using a short chain for the lead through the stern chock

A . fuel B . oxygen C . ignition D . All of the above

A .  mds-mbeans.xml B .  config.xml C .  policy.xml D .  data.xml

A . a light signal of at least five short and rapid flashes B . one prolonged，one short，one prolonged，and one short whistle blasts C . four short whistle blasts D . two short whistle blast

A.crime B.corruption C.addiction D.accusation

A.the scavenging air B.the exhaust gases C.the mixed air D.the spray oil

More than half of the 1000 holiday-makers interviewed said they had decided to send fewer cards, turning instead to their electronic rivals. A quarter of the respondents (受调查者) regard postcards as old-fashioned and slow to arrive. A further 14% admitted that thinking of something to fill the space was too challenging, compared with a call home. Although officially invented by a Hungarian, Emanuel Herrmann, in 1869, the idea of illustrated cards was taken up with most enthusiasm in Victorian Britain, joining Gothic architecture and landscape gardening as fields for which the country was famous. "If the British postcard did disappear, we would lose forever something of great importance to the nation, "said Chris Mottershead of Thomson Holidays, which did the survey. He was backed by Marie Angelou of Sussex University, who has investigated the importance of sending and receiving postcards. "Postcards are nothing like phone calls, instant messages and direct photo shots via the mobile, "she said. "All these are useful, practical devices, but postcards offer something else, something additional that is not simply functional, but imaginative and personal. They can create the real atmosphere of your holiday in a way that nothing else can do. They are also for more than a moment—with some people adding them to collections built up over years and years. Who first got the idea of illustrated cards？ A．Emanuel Herrmann. B．Victorian Britain. C．Chris Mottershead. D．Marie Angelou.

A．unitary elastic and price falls B．elastic and price rises C．inelastic and price falls D．inelastic and price rises

In general, economists complain about the costs of monopoly because they believe that the same industry could be organized competitively. A patent monopoly grant for 17 years presents a different problem. That is, the purpose of the patent system is to encourage invention. The issue is not monopoly versus competition but, more fundamentally, invention versus no invention. Is the world better off with the invention, even though it is monopolized for 17 years？ In other words, what are the costs and benefits of a patent？ Consider the simple case of a new consumer product with a positive demand, such as a camera utilizing a new exposure process. The costs of the patent monopoly are simply the deadweight costs of monopoly measured by the lost consumers' surplus from the 17-year patent monopoly. This cost must be assessed carefully in the context of an invention, however. What are the benefits of the patent system？ First, there is the increase in consumer well-being brought about immediately by a desirable invention. In 17 years, the patent monopoly ends, and a second source of benefits arises: The price of cameras will fall to a competitive level, and consumers will reap the benefits of the camera at a lower price. In sum, theory of monopoly helps us to assess the costs and benefits of the patent. One can quibble about patent monopolies, arguing, for example, that they are granted for too long a time. In the end, the patent system creates goods and services and technologies that did not previously exist. In this respect it is a valuable System for the economy. The patent system also underscores the importance of property rights to ideas as a source of economic growth and progress. The first paragraph mainly______. A．focuses on business monopoly B．tells us about the patent system in America C．discusses a special form. of market organization D．defines what a patent is and its function

A、describe your own experiences, feelings, reflections and an event; B、describe a simple graph or picture; C、express personal opinions on a familiar topic; D、write for everyday situations (advertisement or letter etc.)