阴性的

Why is it called "history" instead of "herstory"?

为何&历史&的词性为阳性，而不是阴性呢？

The ferric uptake regulator protein is a master regulator of iron metabolism in Gram-negative bacteria.

在革兰氏阴性细菌中，铁摄取调节蛋白主管铁的代谢。

Sera from 18 Chinese haemophiliacs treated with factor Ⅷ produced in USA from 1982 to 1984 were tested for antibody to LAV/ H T L V-Ⅲ by ELISA. Four patients ( 22.2%) showed strong positive results which were confirmed by immunofluorescence test and Western blot,but none of them has developed symptoms related to AIDS.

对浙江省1982～1984年注射了美国产浓缩Ⅶ因子制剂的18例血友病患者，用酶联免疫吸附法检测了血清中淋巴腺病病毒/人T细胞Ⅲ型病毒抗体，发现4例阳性，并经免疫荧光试验和Western印迹法证实。2例应用了国产浓缩Ⅷ因子者抗体阴性。

In the two markers, CK20 was more sensitivity. Out of 13 positive peritoneal cavity lavages, 12 of the samples reacted with CK20 Mab and 10 with CEA Mab.

CK20单抗检出13例ICC阳性病例中的12例，CEA检出其中10例，对照组PLC和ICC方法均为阴性。

Results 60.63% of families didn't agree that patients enjoyed the right to know, their features were that most of male, low of age, long of course of disease, short of education, manual workers, extroversion, positive family history, aggressive behaviors, higher scores of total PANSS, P, G, total severity of the CGI, total MOAS and 4 factor.

结果 60.63%家属不同意让患者享受知情权，不同意享受知情权患者的特征是：男性多，年龄低，病程长，受教育年限短，从事体力劳动者，性格外向，家族史阳性者，有攻击行为，阳性症状和阴性症状量表总分及P分和G分，临床总体印象量表严重程度总分，攻击行为量表总分及4个因子分高。

Results Among 152 cases,149 (17 kidney; 11 ureter, 121 bladder) cases was with typical X-ray finding, and 3 cases blank at the X-ray photography.

结果 在152例中，149例（肾结石17例；输尿管结石11例；膀胱结石121例）具有典型的X线表现，其中3例为阴性结石X线片上未见显示。

The pHybLex/Zeo-Idl plasmid and the cDNA library plasmid were sequentially transformed into the yeast swains and screened to obtain Leu2^＋ and Leu2^＋LacZ^＋ clones, with the false positive clones excluded using positive and negative controls, and the plasmid of the true positive clone was sequenced and blasted for homological analysis.

方法PCR方法扩增Id1的编码序列并定向克隆入诱饵质粒pHybLex/Zeo，构建重组诱饵质粒pHybLex/Zeo-Id1，酶切鉴定后转化入酵母株EGY48/pSH18-34，检测重组诱饵质粒有无非特异激活报告基因Leu2、LacZ作用；扩增并提取成人肺组织文库质粒，将文库质粒及重组诱饵质粒转化入酵母细胞，依次筛选Leu2^＋，Leu2^＋LacZ^＋克隆；设置阴性及阳性对照，重复筛选Leu2＋LacZ＋克隆并排除假阳性克隆，获取真阳性文库质粒，进行测序和同源性比对。

Otherwise,the affection on mutagenicity of samples were researched by cooking with some routine methods and false gastric and intestines succus.

豆瓣酱提取液的蚕豆根尖微核率与阴性均存在差异显著性且微核指数＞1.5，样品微核指数范围在1.597-4.434之间，说明豆瓣酱可能存在致突变性。

The oil was applied to the wounded area twice a day for high-dose pulp oil group and high-dose seed oil group, and it was applied once a day for the low-dose groups. For the negative control group, sterilized injection water was applied once a day, and Solcoseryl-Jelly ointment was applied once a day for the positive control group.

沙棘果油及籽油高剂量组，每天在损伤部位涂药两次，而其低剂量组每天涂药一次，阴性对照组每天涂灭菌的注射用水一次，阳性对照组每天涂Solcoseryl-Jelly软膏一次。

Totally 120 aerobic or facultative anaerobic halophilic isolates obtained from different solar salterns and coasts located in the Zhoushan Archipelago, China. Most of the isolates are moderately halophilic or halotorant, and thereinto, white colonies are dominant while red and yellow colonies are also plurality.

浙江舟山地区近海和盐田的样品中分离纯化出120株嗜盐菌，其中多数为中度嗜盐菌或耐盐菌，颜色以白色为主，其次是红色和黄色，细胞形态多为杆状或球状，革兰氏阴性菌株占81.6%。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。