Colds are very common. The symptoms of the common cold include a sore throat, runny nose, stuffed-up nose, and tiredness. Colds are caused by viruses, but scientists cannot explain the exact cause. There is no cure. Many people, however, believe that they know the causes of and cures for the common cold. For example, they believe that it is possible to get a cold if we get chilled, if we get extra tired, or if we are too close to a person with a cold. In other words, if we want to prevent catching cold, we should stay warm and dry; we should avoid getting too tired, and we should not be in close contact with people who have colds. Meanwhile, there are probably hundreds of " cures" throughout the world for the common cold. For example, the following suggestions are popular in quite a number of societies : (1) drink plenty of water; (2) get extra rest; (3) take a lot of vitamin C; (4) take aspirin; (5) keep warm. Each year people spend a lot of money on cold medicines-pills, liquids, lozenges (含片). But these medicines do not cure colds; they can only relieve cold symptoms. In other words, they make us feel better. Which of the following is NOT a "cure" for the common cold
A. Take a lot of vitamin C.
B. Drink plenty of water.
C. Get more rest.
D. Put on as many clothes as possible.
查看答案
病区护理管理的特点不包括
A. 护理工作的主动性
B. 护理工作的灵活性
C. 护理工作的艺术性
D. 护理工作的科学性
E. 护理工作的连续性
Hypertension is the medical term for persistent and sustained high blood pressure. It is one of the most (51) forms of heart disease. An understanding of blood pressure in (52) , healthy individuals is necessary in order to understand hypertension.Blood pressure is simply the force (53) against the walls of the body’s arteries (血管) as blood flows through. The force, produced primarily by the pumping (54) of the heart, is essential for the (55) of the blood and its life-supporting nutrients(营养) to all parts of the body. Every time the heart (56) , called a systole, blood pressure increases. When the heart relaxes (57) beats(diastole), the pressure decreases. The normal systolic pressure of a person at vest is between 100 to 140, and the normal diastole is 60 to 90. Blood-pressure readings are expressed by both (58) , with the systolic over the diastolic: for example, 140/90.As these ranges suggest, there is a wide (59) of blood pressure for healthy people. Also, blood pressure (60) for healthy people during different times of the day and under different. (61) . It is lower when an individual is asleep than when he is excited or exerting himself physically. Therefore, a single blood-pressure reading above 140/90 does not (62) abnormality. When the pressure is continuously (63) , a person is considered to be suffering from hypertension.Hypertension is a stealthy(隐秘的) problem: a physician can discover it easily enough, but not a patient. (64) elevations, for example, may produce headaches, dizziness, fatigue, and weakness. But the patient is not likely to (65) these symptoms as having any other source than the increased elevation. 52()
A. average
B. normal
C. regular
D. steady
对于在大学中保护职业聘用的终生职位制度的最好的评论是它允许老资格的教员能够雇用比他们聪明的人,并且他们能够保持安全。因为他们了解:除非在他们自己的道德卑鄙行为被抓住(一个在目前情况下几乎无法定义的概念)的情况下,年轻的成员并不能取代并解雇他们。然而这一制度在工业中却不存在。 下列哪一个假设最可能是上文推理的作者所作出的( )
A. 工业应当学习大学的例子,通过建立终身职位制度来保护管理人员的工作。
B. 假如没有终身职位制度的存在,老资格教员可能不情愿雇用可能威胁他们自己工作的新雇员。
C. 传统上那种认为终身职位制度保护大学中的学者因信仰不因循守旧或不庸俗而被开除的说法不再有说服力了。
D. 老资格的教员通常雇用和提拔学术研究比自己更能跟得上时代的新成员。
电子邮件可以将文本、图象______等多种类型的信息集中在一个邮件中,实现多媒体信息传送。