In this paper, we propose a new type of bond, continuous multi-centered d-pn bond on the basis of the Extended Huckel Tight-Banding Calculation and SCC-EHMO calculation for TaPtTe5 and its iso-structural compounds wit...In this paper, we propose a new type of bond, continuous multi-centered d-pn bond on the basis of the Extended Huckel Tight-Banding Calculation and SCC-EHMO calculation for TaPtTe5 and its iso-structural compounds with infinite continuous structrue. The results show that the d-pπbonds which are mainly responsible for the metallic properties are very strong and dispersive. The ΔE, the energy gap between half-filled band block and the unoccupied band block is closely related to the conductivity. The conductivity of TaPdTe5 and NbPtTe5 is predicted. The perturbations between Te atoms in intralayer and interlayer are discussed.展开更多
黄达平1.单项选择。分提问) 1 .Mr Green has a httle girl--.Alice.____—Mr Green be back? A.to call B.ealling C.eallsD·ealled 5.Hurry uP,or you won,t eatch the early bus· 2.My father—一the party 3 years ago.He...黄达平1.单项选择。分提问) 1 .Mr Green has a httle girl--.Alice.____—Mr Green be back? A.to call B.ealling C.eallsD·ealled 5.Hurry uP,or you won,t eatch the early bus· 2.My father—一the party 3 years ago.He(改为复合句) aPartymenlberfor3years.you—__,you A .has joined,has been Bjoined,has been won’t eatch the early bus. e.joined,was D.was joining,isB)在改写后的句子中每空填一词,使其与原句 3.—themoneyweboughtthings—意思相同或相近。 our lab.6.Miss、触ng left Guangzhouthree days ago· A.B丫for B.With,to C.For,to D.With for Miss Yang—_一丘。m 4.Please sPeak to her...展开更多
Effect of domestically-made levonorgestrel-releasing intrauterine device (LNG, release rate: 6 μg/day) on the endocrine system and menstruation in mondeys was investigated. The results showed that the Estradiol (E2) ...Effect of domestically-made levonorgestrel-releasing intrauterine device (LNG, release rate: 6 μg/day) on the endocrine system and menstruation in mondeys was investigated. The results showed that the Estradiol (E2) and progesterone (P) levels were significantly decreased 2 ovulatory cycles after iusertion of the devices as compared with those before insertion in 3 monkeys (P>0. 001) ,suggesting an evident ovulation-suppressing effect. In 1 monkey, the E2 and P levels were the same before and after insertion,and expulsion of device was found in the monkey later. The plasma LNG concentration in 3 animals was 493. 69-454. 60 pg/ml and plasma LNG was not detected in 1 monkey. The hormone level returned to normal level after removal of the devices.展开更多
I.在正确答案下划线。1.Mrs Chen is opening(her,his,its)handbag.2.Is he a postman(and,but,or)a policeman?3.My father has bought this house.It is now(yours, ours,theirs).4.Where(did,have,were)you planted the new rose plant?
文摘In this paper, we propose a new type of bond, continuous multi-centered d-pn bond on the basis of the Extended Huckel Tight-Banding Calculation and SCC-EHMO calculation for TaPtTe5 and its iso-structural compounds with infinite continuous structrue. The results show that the d-pπbonds which are mainly responsible for the metallic properties are very strong and dispersive. The ΔE, the energy gap between half-filled band block and the unoccupied band block is closely related to the conductivity. The conductivity of TaPdTe5 and NbPtTe5 is predicted. The perturbations between Te atoms in intralayer and interlayer are discussed.
文摘黄达平1.单项选择。分提问) 1 .Mr Green has a httle girl--.Alice.____—Mr Green be back? A.to call B.ealling C.eallsD·ealled 5.Hurry uP,or you won,t eatch the early bus· 2.My father—一the party 3 years ago.He(改为复合句) aPartymenlberfor3years.you—__,you A .has joined,has been Bjoined,has been won’t eatch the early bus. e.joined,was D.was joining,isB)在改写后的句子中每空填一词,使其与原句 3.—themoneyweboughtthings—意思相同或相近。 our lab.6.Miss、触ng left Guangzhouthree days ago· A.B丫for B.With,to C.For,to D.With for Miss Yang—_一丘。m 4.Please sPeak to her...
文摘Effect of domestically-made levonorgestrel-releasing intrauterine device (LNG, release rate: 6 μg/day) on the endocrine system and menstruation in mondeys was investigated. The results showed that the Estradiol (E2) and progesterone (P) levels were significantly decreased 2 ovulatory cycles after iusertion of the devices as compared with those before insertion in 3 monkeys (P>0. 001) ,suggesting an evident ovulation-suppressing effect. In 1 monkey, the E2 and P levels were the same before and after insertion,and expulsion of device was found in the monkey later. The plasma LNG concentration in 3 animals was 493. 69-454. 60 pg/ml and plasma LNG was not detected in 1 monkey. The hormone level returned to normal level after removal of the devices.
文摘I.在正确答案下划线。1.Mrs Chen is opening(her,his,its)handbag.2.Is he a postman(and,but,or)a policeman?3.My father has bought this house.It is now(yours, ours,theirs).4.Where(did,have,were)you planted the new rose plant?
