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  3. The wonders which medical workers have already brought about in the diagnos

The wonders which medical workers have already brought about in the diagnos

游客2025-04-13  13
问题      The wonders which medical workers have already brought about in the diagnosis and treatment of disease suggest that a time may come 【C1】______  the physician will be able to analyze most illnesses as 【C2】______  as they start, and cure 【C3】______  before damage results. How soon this "golden age of healing" arrives will 【C4】______  greatly on how close is the collaboration between research workers in medicine and 【C5】______  who work in the sciences on which medicine depends. The physician has 【C6】______  relied on the chemist for curative drags, and on the physicist for diagnostic instruments and healing rays. In the one field new materials and in the 【C7】______  new devices are 【C8】______  produced in increasing numbers, helping to 【C9】______  imminent new miracles of medicine.
     The X-ray and the microscope 【C10】______  extended the vision of the medical observer 【C11】______  he can see 【C12】______  ten inches of living flesh or 【C13】______  a single tissue cell, yet similar but much more powerful tools 【C14】______  await development. Modem electrical devices 【C15】______  him to listen to faint murmurings of the life processes, or to measure feeble currents arising 【C16】______  heart and brain and nerve; yet electrical body measurements are 【C17】______  little understood. Now newly discovered atomic rays are being brought to 【C18】______  him destroy malignant invaders of the human system, and there is 【C19】______  reason to believe that even 【C20】______  curative rays await discovery. [br] 【C10】______
选项
答案 have
解析 主语是医疗设备，这些医疗设备拓展了医学观察员的视野，不用被动语态，have extended表示已经发生的状态。
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