【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．magnets increase pain
C．magnets aggravate pain
D．magnets stop pain
网考网参考答案：A
网考网解析：
[分析] 词义题型 第四段第一句用“magnets attenuate pain”设问，后面一句谈到1997年做的一项双盲测试是为了研究磁体是否能减轻痛苦(reduction in pain)，因此选项A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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