【单选题】
On the positive side, these magnets are so weak that they cause no harm. On the negative side, these magnets do have the remarkable power of attracting the pocketbooks of gullibleAmericans to the tune of about $ 300 million a year. They range in scale from coin- sized patches to mattresses, and their curative powers are said to be nearly limitless, based on the {{U}}premise{{/U}} that magnetic fields increase blood circulation and enrich oxygen supplies because of the iron pressure in the blooD、
This is fantastic flapdoodle and a financial flimflam. Iron atoms in a magnet are crammed together in a solid state about one atom apart from one another. In your blood only four iron atoms are allocated to each hemoglobin molecule, and they are separated by distances too great to form a magnet. This is easily rested by picking your finger and placing a drop of your blood next to a magnet.
What about claims that magnets attenuate pain In a 1997BaylorCollege of Medicine double-blind study of 50 patients (in which 29 got real magnets and 21 got sham ones), 76 percent in the experimental group but just 19 percent in the control group reported a reduction in pain. Unfortunately, this study included only one 45-minute treatment, did not try other pain-reduction {{U}}modalities{{/U}}, did not record the length of the pain reduction and has never been replicateD、
Scientists studying magnetic therapy would do well to read the 1784 "Report of theCommissionersCharged by the King toExamineAnimal Magnetism" (reprinted in anEnglish translation in Skeptic, Vol. 4, No. 3). The report was instituted by French King Louis XVI and conducted byBenjamin Franklin andAntoine Lavoisier to experimentally test the claims of German physician FranzAnton Mesmer, discoverer of "animal magnetism." Mesmer reasoned that just as an invisible force of magnetism draws iron shavings to a lodestone, so does an invisible force of animal magnetism flow through living beings.
B．imagination
C．statement
D．presupposition
网考网参考答案：D
网考网解析：
[分析] 词义题型 第二段介绍了磁体对人造成的正；负面影响，且谈及这些影响从小到大涵盖了许多方面，据说它们的治疗效果几乎也是无边的，但这一切均建立在the premise的基础上，由此得知选项D为答案。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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