Methods: A polymerase chain reaction assay with oligonucleotide primers homologous to a portion of the urease C and cytotoxin associated gene A of Hp was used to test the presense of Hp in dental plaque.

依據(jù)特異的尿素酶C 基因和 cag A基因設(shè)計(jì)引物操五十岁肥熟好多水，建立聚合酶鏈反應(yīng)方法国内自拍2022，檢測(cè)65例慢性胃病患者不同牙齒的齦上和齦下菌斑中的Hp.6例胃Hp陽性的胃炎患者，經(jīng)藥物治療后啦啦啦免费观看www，檢測(cè)口腔Hp一国产区视频。

By using the $ 25 intermediate market price to control intracompany transfers, the firm is able to show that a portion of this margin accrues from the efforts of Division A and a portion accrues from the efforts of Division B.

使用25美元的中間市場(chǎng)價(jià)來控制部門的轉(zhuǎn)移時(shí)，公司能夠分別列示出來自于A亚洲无码视频亚洲人的网站，B兩部門的邊際貢獻(xiàn)操学生妹视频在线观看。

Polymerase chain reaction amplification of a portion of a gene encoding a surface protein of Wolbachia was used to detect the Wolbachia infection of the population of Pteromalus puparum and Nasonia vitripennis by universal primers of wsp gene and the specific primers for wsp genes of A and B Wolbachia supergroup.

采用Wolbachia 的通用引物及A和B大組特異性引物對(duì)蝶蛹金小蜂Pteromalus puparum和麗蠅蛹集金小蜂Nasonia vitripennis體內(nèi)Wolbachia的wsp基因進(jìn)行PCR擴(kuò)增及序列測(cè)定，并對(duì)測(cè)定的序列進(jìn)行了同源性比較和基因特征分析高h一区。

a portion of roast beef：一串烤牛排

83a pop concert流行音樂會(huì) | 84a portion of roast beef一串烤牛排 | 85a primary school小學(xué)

a portion of roast beef：一客烤牛排

a plot of land 一塊地 | a portion of roast beef 一客烤牛排 | a pot of soup 一鍋湯

A series of pre-recorded tapes has been prepared for language laboratory use：已準(zhǔn)備好一系列預(yù)先錄制的磁帶供語言實(shí)驗(yàn)室使用

(6)a portion of , a series of , a kind... | A series of pre-recorded tapes has been prepared for language laboratory use. 已準(zhǔn)備好一系列預(yù)先錄制的磁帶供語言實(shí)驗(yàn)室使用. | (1)both, some, few, many, seve...