简介:Man-ETourismVillageofDaiNationalityCstomsinXishuangbannaTXMan-ETourismVillageofDaiNationalityCustomsinXishuangbannaByDuanQiwuX...
简介:因小失大列车员剪票时发现,一个苏格兰成人用的是儿童票,但苏格兰人坚持不肯补票,于是检票员拿起旅客的衣箱就往车外扔,此时,火车正过桥。“您疯啦!”苏格兰人狂喊。“您跟我的票过不去,又淹死了我的弟弟!”第二志愿
简介:ThetransgenicriceKMD1,expressingasyntheticCry1AbgenefromBacillusthuringiensis,showedeffectiveresistancetoSignificantdeclineswererevealedinfoodconsumptionandgrowthoftheolderRLFnymphsfedonthecut-leavesoftransgenicKMD1plants.TheincreaserateoffoodconsumptionbylarvaefedonKMD1wasdrasticallylowerthanthoseonXiushui11.FoodconsumptionwasvariedwithdifferentinstarswhenthelarvaefedontheBtrice.Thoseoffourth-andfifth-instarlarvaeweredifferentcomparedtothethird-instar,lowerthanthoseonthenon-transgenicricebutstillincreasedalittlewhenthefeedingtimeprolonged.ItisindicatedthatyoungerRLFlarvaearemoresensitivetoBtricethanolderones.Also,about81%,78%and68%ofthethird-,fourth-andfifth-instarRLFlarvaediedwithin72hoursbioassayperiodonKMD1leaves,respectively.TheseresultsdemonstratedthatBt-transgeneinKMD1riceconferssubstantialprotectionagainstinfestationswitholderRLFlarvae.
简介:今年前8个月,我国原木进口1634万m~3,已接近去年全年进口量1686万m~3;锯材350万m~3,去年全年进口402万m~3。由于进口针叶材比例的增加,今年平均木材进口单价下降较多,去年原木针叶材进口占54%,锯材针叶材比例占16%;今年前8月,原木针叶材比例占65%,锯材针叶材比例占22%。由此今年平均木材进口单价下降,原木从去年的100美元/m~3下降至87美元/m~3,锯材从去年的246美元/m~3下降到219美元/m~3。原木进口量最大的是绥芬河、满洲里和二连浩特,分别为376万、224万、175万m~3,以针叶材为主;位居进口量第七位的张家港进口原木49万m~3,以较珍贵的阔叶材为主。原木进口最多的省份是内蒙、黑龙