富含维生素e的食物：维生素e被认为是一种性维生素，食物来源有麦芽油、坚果、小麦、小米和芦笋等。严重缺乏维生素e会导致阴茎退化和萎缩、性激素分泌减少并丧失生殖能力。常吃富含维生素e的食物能预防并改善这种状况。
海产品：鱼、虾、贝壳类、海藻类食物。在古罗马时期，人们就发现，海产品是滋养性欲的理想食品，特别是鲨鱼肉，它作为性爱的“催化剂”至[阅读全文]
智慧人生
人生随缘 看不惯别人是自寻烦恼 .可以不拥有任何东西，除了对生活的激情。好好生活,你的生命是一次性的。
博文
(2004-12-31 08:16:42)
(2004-12-31 08:13:47)
1、黄芪12克、当归15克、党参9克、白术9克、天冬9克、茯苓9克、淮山9克、白芍6克、川芎6克、甘草5克。水煎服，每天一剂。主治宫颈癌气不足者。
2、土茯苓30克、蒲公英30克、茯苓25克、茵陈25克、白术15克、当归9克、白芍9克、柴胡4.5克、泽泻9克。水煎服，每天一剂。苦参60克、蛇床子30克、野菊花30克、银花30克、白芷15克、菖蒲15克。加水适量煎，去渣浸泡阴道、[阅读全文]
(2004-12-31 05:55:17)
1.Whichofthefollowinggeneratesharmonics?a.)Transducer
b.)Tissue
c.)Bone
d.)Beamformer
Yousaid:
b).Tissue
Correct!RefertoGeneration101forfurtherstudy.See:HarmonicGeneration2.Inconventionalprocessing,whichofthefollowingbestdescribestherelationshipbetweenthetransmitfrequency(TF)andthereceivedfrequency(RF)processedbythesystem?a.)TheTFistwicetheRF
b...[阅读全文]
b.)Tissue
c.)Bone
d.)Beamformer
Yousaid:
b).Tissue
Correct!RefertoGeneration101forfurtherstudy.See:HarmonicGeneration2.Inconventionalprocessing,whichofthefollowingbestdescribestherelationshipbetweenthetransmitfrequency(TF)andthereceivedfrequency(RF)processedbythesystem?
b...[阅读全文]
(2004-12-31 05:43:37)
(2004-12-31 05:40:41)
(2004-12-31 05:37:08)
Throughoutthistutorialyouhavelearnedwhatharmonicsare,howtheyareproduced,howtheyareprocessed,andtheclinicalbenefitsofTissueHarmonicImaging[阅读全文]
(2004-12-31 05:25:31)
Inthismoduleyouwillbegivenanopportunitytocompareimagesthatwereprocessedusingeitherconventionalorharmonicprocessingtechniques.TheseimageswilldemonstratehowTissueHarmonicImagingaffectsimagequality.TissueHarmonicImagingreducestheoverallnoiselevelandimprovesendocardialvisualizationwhenconductingcardiologyexaminations.Ribsareofteninthewaywhentryingtovisualizetheheart.Theribsproducereverberationartifact...[阅读全文]
(2004-12-31 05:15:49)
Imageartifactsarereducedinharmonicimaging.Mostartifactsareproducedinthenearfield.Sinceharmonicsignalsareverylowinthenearfield,theimageartifactsdonotgenerateharmonics.Thereislittleornoharmonicenergyinthenearfieldoratthefaredgesoftheacousticfield,andasaresultthemajorityofimageartifactsarecontainedonlyinthefundamentalfrequencies.
Harmonicfrequenciesarenotproducedinthenearfieldbecausethewavehasnot...[阅读全文]
(2004-12-30 20:20:05)
用我的心，牵你的手[阅读全文]
(2004-12-30 20:19:04)
一人障目，不见泰山[阅读全文]
