A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury，recommended treatment would include（）.

A . carotid artery in the neck B . femoral artery in the groin C . brachial artery in the arm D . radial artery in the wrist

A . class Man extends Dog { } B . class Man implements Dog { } C . class Man { private BestFriend dog； } D . class Man { private Dog bestFriend； } E . class Man { private Dog

A . class Man extends Dog{} B . class Man implements Dog{} C . class Man{private BestFriend dog；} D . class Man{private Dog bestFriend；} E . class Man{private Dog

A . class Man extends Dog { } B . class Man implements Dog { } C . class Man { private BestFriend dog; } D . class Man { private Dog bestFriend; } E . class Man { private Dog<bestFriend>; } F . class Man { private BestFriend<dog>; }

A . Immerse the arm in cold water for 1 to 2 hours，apply burn ointment，and bandage B . Open any blisters with a sterile needle，apply burn ointment and bandage C . Apply burn ointment，remove any foreign material and insure that nothing is in contact with the burn D . Immerse the arm in cold water for 1 to 2 hours，open any blister and apply burn ointment

A .  class Man extends Dog { } B .  class Man implements Dog { } C .  class Man { private BestFriend dog； } D .  class Man { private Dog bestFriend； } E .  class Man { private Dog

A．stressed B．exploited C．prevented , D．conquered

A．Farmers in developed countries. B．Farmers in developing countries. C．Businessmen in the U.S.A D．W.T.O.

The two women in this case were eyewitnesses. They clearly saw the man who attacked them, yet they mistakenly identified an innocent person. Similar incidents have occurred before. Eyewitnesses to other crimes have identified the wrong person in a police lineup or in photographs. Many factors influence the accuracy of eyewitness testimony. For instance, witnesses sometimes see photographs of several suspects before they try to identify the person they saw in a lineup of people. They can become confused by seeing many photographs or similar faces. The number of people in the lineup, and whether it is a live lineup or a photograph, may also affect a witnesses decision. People sometimes have difficulty in identifying people of other races. The questions the police ask witnesses also have an effect on them. Are some witnesses more reliable than others？ Many people believe that police officers are more reliable than ordinary people. Psychologists decided to test this idea, and they discovered that it is not true. Two psychologists showed a film of crimes to both police officers and civilians. The psychologists found no difference between the police and the civilians in correctly remembering the details of the crimes. Despite all the possibilities for inaccuracy, courts cannot exclude eyewitness testimony from a trial. American courts depend almost completely on eyewitness testimony to resolve court cases. Sometimes it is the only evidence to a crime, such as rape. Furthermore, eyewitness testimony is often correct. Although people do sometimes make mistakes, many times they really do identify individuals correctly. American courts depend on the ability of the 12 jurors, and not the judges, to determine the accuracy of the witnesses testimony. It is their responsibility to decide if a certain witness could actually see, hear, and remember what occurred. In a few cases, the testimony of eyewitnesses has convicted innocent people. More importantly, it has rightly convicted a larger number of guilty people; consequently, it continues to be of great value in the American judicial system. What is the main idea of the passage？ A．Bernard Jackson spent five years in prison for no crime of his own. B．Eyewitness testimony, although sometimes incorrect, is valuable. C．Police officers are no better eyewitnesses than civilians are. D．American courts rightly convict a larger number of guilty people.

A．have B．has C．does D．do

A．the same opportunity cost of spending time on leisure activities B．a higher opportunity cost of working an additional hour C．a lower opportunity cost of driving farther to work D．a higher opportunity cost of taking the day off work

B、at C、in D、for

A.class Man extends Dog { } B.class Man implements Dog { } C.class Man { private BestFriend dog; } D.class Man { private Dog bestFriend; } E.class Man { private Dog＜bestFriend＞; } F.class Man { private BestFriend＜dog＞; }