Video: Puas yog kev xeeb tub menyuam yaus nce lossis txo qis?
2024 Tus sau: Edward Hancock | [email protected]. Kawg hloov kho: 2023-12-16 01:32
Tom qab xyoo ntawm nce nyob rau xyoo 1970 thiab 1980, lub tub ntxhais hluas cev xeeb tub tus nqi nce siab hauv xyoo 1990 thiab tau poob qis tsis tu ncua txij li thaum. Hauv paus, tub ntxhais hluas cev xeeb tub tus nqi tau txo nyob rau hauv ib qho ntawm ob txoj kev-yog cov hluas muaj kev sib deev tsawg dua los yog ua tau zoo dua cov neeg siv tshuaj tiv thaiv kab mob-los yog los ntawm qee qhov sib xyaw ua ke ntawm ob.
Yog li ntawd, tus hluas cev xeeb tub puas nce?
Yug tus nqi poob 10% rau cov poj niam hnub nyoog 15-17 xyoo thiab 6% rau cov poj niam hnub nyoog 18-19 xyoo. Txawm li cas los xij, US tus hluas cev xeeb tub tus nqi yog qhov tseem ceeb siab dua tshaj nyob rau hauv lwm lub teb chaws industrialized western5, thiab haiv neeg / haiv neeg thiab thaj chaw tsis sib xws hauv hluas yug tus nqi nyob twj ywm.
Kuj Paub, qhov kev xeeb tub hluas tau txo qis npaum li cas? Hnub no U. S. hluas kev yug me nyuam yog nyob rau txhua lub sij hawm qis. Txij li thaum 1991, cov nqi ntawm tub ntxhais hluas cev xeeb tub tau poob los ntawm ib nrab. Hauv xyoo 2013, CDC tau tshaj tawm tias kev yug me nyuam rau Asmeskas. cov hluas 15-19 xyoo poob rau cov ntaub ntawv qis tsis pom txij li xyoo 1946. Qhov no poob rau hauv tub ntxhais hluas cev xeeb tub hla txhua haiv neeg thiab haiv neeg.
Ib yam li ntawd, nws raug nug, vim li cas cov tub ntxhais hluas cev xeeb tub nce?
Qhov laj thawj loj rau qhov pom loj nce nyob rau hauv ua ntej cev xeeb tub yog cov nce hauv kev sib deev. Muaj ib tug nce nyob rau hauv ua ntej cev xeeb tub ntawm kev sib deev active dawb cov hluas , tab sis tsis yog cov dub cov hluas . Qhov tsis muaj nce ntawm cov dub yog tej zaum yog vim underreporting ntawm rho menyuam.
Thaum twg tus hluas cev xeeb tub ntawm nws siab tshaj?
Kev yug me nyuam Cov tub ntxhais hluas 2017 tus menyuam yug los (yug ib 1,000 tus poj niam hnub nyoog 15-19 hauv ib xyoos) yog nqis xya feem pua los ntawm 2016, thaum yug tus nqi yog 20.3, thiab qis dua 70 feem pua los ntawm 1991 thaum nws nyob ntawm cov ntaub ntawv siab. ua 61,8.
Pom zoo:
Puas yog nws txo hwj chim tshaj lossis txo hwj chim tshaj?
Teb thiab piav qhia: Daim ntawv sib piv ntawm adjective 'humble' yog 'humbler.' Tus superlative yog 'humblest.' Nov yog qee qhov piv txwv ntawm
Puas yog cev xeeb tub pib thaum cev xeeb tub lossis implantation?
Kev xeeb tub pib thaum implantation. Tib neeg lub neej yuav tsum pib nrog kev xeeb tub, tab sis kev xav tsis zoo ib yam li cev xeeb tub, qhov kawg ntawm qhov laj thawj, kev tshawb fawb, thiab cov pov thawj kho mob pom zoo pib thaum lub qe fertilized tiav cog rau hauv lub tsev menyuam thiab txhim kho mus rau hauv lub embryo noj qab nyob zoo
Puas yog ectopic cev xeeb tub yuav tshwm sim ntawm kev kuaj cev xeeb tub?
Puas yuav muaj Ectopic cev xeeb tub tshwm sim ntawm Kev Ntsuas Hauv Tsev? Txij li thaum cev xeeb tub ectopic tseem tsim cov tshuaj hCG, lawv yuav sau npe ua qhov kev kuaj mob hauv tsev zoo. Cov poj niam uas cev xeeb tub ectopic tseem yuav muaj cov tsos mob thaum cev xeeb tub xws li mob lub mis, xeev siab, pom, thiab lwm yam
Puas yog qhov qaij ntawm lub ntiaj teb nce lossis txo qis?
Thaum obliquity ntawm 0 degrees, ob axes taw tes rau hauv tib txoj kev; piv txwv li, lub rotational axis yog perpendicular rau lub orbital dav hlau. Lub ntiaj teb obliquity oscillates ntawm 22.1 thiab 24.5 degrees ntawm 41,000-xyoo voj voog; Lub ntiaj teb lub ntsiab lus obliquity tam sim no yog 23 ° 26'12.0 "(los yog 23.43667 °) thiab txo qis
Kev sib raug zoo puas txo qis kev sib nrauj?
Qhov nruab nrab, cov kws tshawb fawb tau xaus lus tias cov khub niam txiv uas nyob ua ke ua ntej lawv khi lub pob caus pom 33 feem pua ntawm kev sib nrauj ntau dua li cov uas tos nyob ua ke txog thaum lawv sib yuav. Ib feem ntawm qhov teeb meem yog tias cov neeg nyob sib ze, cov kev tshawb fawb tau pom tias, "xav mus rau hauv" kev sib yuav yam tsis muaj kev xav ntau