The representative families are Dryopteridaceae, Athyriaceae, Polypodiaceae, Thelypteridaceae, Selaginellaceae and Aspleniaceae. The main genera are Dryopteris, Selaginella, Asplenium, Arachniodes, Pteris, Allantodia and Plagiogyria. The top families' distribution types are cosmopolitan and pantropic ones, the main genera are pantropical ones, while species distribution type belong to the east Asia type and represents the feature of subtropics transition to warm temperated areatype. As for the order of closeness, the sequence of pteridophytes floristic relations between Songyang and the adjacent regions goes as Southwest China, South China, Central China, Japan, North China, Northwest China and Northeast China. The six upland pteridophytes next to Songyang can be put into the same natural flora because of its closest relationship. But compared with other 11 upland fern flora in China, fern in Songyang is not rich enough. There are 37 species endemic to China in Songyang.

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Results: Mixed the 25 human serum , each subpackage 8 and sealed, take three put in -20 ℃low-temperature refrigerator, five were placed in 4 ℃ refrigerator. Determined the apoA1, apoB content which put in 4 ℃ refrigerator in1, 3,5,7,14 and 28 days, the measured values of apoA1, apoB are increased, apoB compared with apoA1 increased significantly; then measured 1, 5,7,14 and 28-day stored in -20 ℃ refrigerator, temperated apoA1 , apoB levels, apoA1 determination results more stable, slightly increased, but not obvious; he increasing trend of apoB is more evident.

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And because the Gulf stream is the only reason much of Western Europe has so mild and temperated a climate, such a shutdown of that conveyor belt of heat could be nothing short of catastrophic.

而墨西哥灣流是歐洲西部擁有如此溫和舒適的氣候的主要原因色色五月天网站，如此的中斷了熱量傳輸紐帶簡直就是災(zāi)難。