Belgium has three main geographic regions: the coastal plain, the central plateau, and the highlands. The coastal plain extends inland 16 to 48 kilometers on the northwest. Along the North Sea is a low-lying area consisting mainly of sandy hills and sections of land reclaimed from the sea. The coastal plain’s elevation ranges from sea level to 20 meters.
The central plateau is a gently rolling, slightly elevated area, irrigated by many waterways, and containing a number of wide fertile valleys with a rich soil. The highlands, a densely-wooded plateau averaging 460 meters in elevation, extend across southeastern Belgium and into northeastern France. Located here is the highest peak in Belgium with an elevation of 694 meters. The climate near the sea is humid and mild. Further inland, a marked increase in the range of temperature occurs. In the highlands, hot summers alternate with cold winters. Heavy rains are confined almost exclusively to the highlands. Fog and rai
1. Medical care has three
main elements: diagnosis of disease or injury, treatment of disease or injury,
and prevention of disease. 2. Serious ailments require diagnosis by an expert, who, in most cases, is a doctor. Doctors use three main types of "clues" in making a diagnosis:the patient’s case history, the doctor’ s physical examination of the patient, and the results of medical tests. Patients provide their own medical history by answering questions about their physical condition and past illnesses. Doctors use medical instruments, such as a stethoscope to listen to a patient’s heart and lungs, to perform a physical examination. Medical laboratories aid diagnosis by making chemical and microscopic tests on body fluids and tissues. A physician may also order tests that use X rays, sound waves or electric waves to detect disease by 我来回答: 提交
|