Passage 2
Are you aware that you actually possess six senses The sixth is a muscular sense responsible for directing your muscles intelligently to the extent necessary for each action you perform. For example, when you reach for an object, the sensory nerves linking the muscles to the brain stop your hand at the correct spot. This automatic perception of the position of your muscles in relation to the object is your muscular sense in action.
Muscles are stringly bundles of fibers varying from one five - thousand of an inch to about three inches. They have three unique characteristics, they can become shorter and thicker; they can stretch; and they can retract to their original positions. Under a high -powered microscope, muscle tissue is seen as long, slender cells with a grainy texture like wood.
More than half of a person’ s body is composed of muscle fibers, most of which are involuntary, in other words, work without conscious direction. Th
A. the efficiency of our muscles
B. the normal breathing function
C. directing our muscles intelligently
D. the work of only our involuntary muscles
对治疗措施需进一步调整，下列调整措施正确的是（）（提示患者入院后第5d出现发热，最高体温38.5℃，痰仍为脓性，量较多，可自行咳出，患者呼吸困难加重。动脉血气显示pH7.32，PaCO277mmHg，PaO255mmHg，SaO286%，HCO3-39.7mmol/L。患者意识清楚。床旁X线胸片较入院时无明显变化。）
(46) The determination of the sources of copper ore used in the manufacture of copper and bronze artifacts of Bronze Age civilizations would add greatly to our knowledge of cultural contacts and trade in that era when preliminary industry was on the horizon. Researchers have analyzed artifacts and ores for their concentrations of elements, but for a variety of reasons, these studies have generally failed to provide evidence of the sources of the copper used in the objects. Elemental composition can vary within the same copper-ore lode, usually because of varying admixtures of other elements, especially iron, lead, zinc, and arsenic. And high concentrations of cobalt or zinc noticed in some artifacts, appear in a variety of copper-ore sources. Moreover, the processing of ores introduced poorly controlled changes in the concentrations of minor and trace elements in the resulting metal. Some elements evaporate during smelting and roasting; different temperatures and processes
Health implies more than physical fitness. It also implies mental and emotional well-being. An angry, frustrated, emotionally (21) person in good physical condition is not (22) healthy. Mental health, therefore, bas much to do (23) how a person copes with the world as she/he exists. Many of the factors that (24) physical health also affect mental and emotional well-being.
Having a good self-image means that people have positive (25) pictures and good, positive feelings about themselves, about what they are capable (26) , and about the roles they play. People with good self-images like themselves, and they are (27) like others. Having a good self-image is based (28) a realistic (29) of one’s own worth and value and capabilities.
Stress is an unavoidable, necessary, and potentially healthful (30) of our society. People of all ages (31) stress. Children begin to (32) stress duri
A. assessment
B. decision
C. determination
D. assistance
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