阴性的

Actinobacteria retain the deep purple color of crystal violet; Gram negative bacteria (e.g. Cyanobacteria) are decolorized, and may be counterstained with other dyes, such as safranin, carbol fuchsin, neutral red.

革兰氏阳性菌会保持结晶紫的深紫红色；革兰氏阴性菌则会褪色，但可以被其他染料复染，如碱性藏红、品红或中性红。

Results Among 50 sera from PBC patients,41 were positive,all of controls were negative.

结果 50例确诊的PBC患者中41例OGDC-E2抗体阳性，9例阴性，阳性率为82.0%。

In 10.5 day mouse embryo, by the induction of notochord, mesenchymal cells of ventromedial somite differentiate into sclerotome, cells migrate towards notochord, forming perinotochord tube around notochord, the cartilage is till invisible, alcian dying is faintly positive.

椎体区域发生骨化后（E16.5），阿利辛兰染色呈阴性，茜素红染色呈阳性，仅有Ihh在椎体边缘有表达，无PTHrP表达；在椎间盘区域，仍然保持阿利辛兰染色阳性，仅有PTHrP的表达，无Ihh表达。

Sperm nucleus immaturity rate in each AlCl3 group increased significantly (P.01) with a dose dependent manner.

精子核荧光染色试验中，高、中、低剂量AlCl3染毒组未成熟精子率均高于阴性对照组，差异有统计学意义(P.01)；且未成熟精子率随着AlCl3染毒剂量的升高而增加。

The results of the early spermatid micronucleus test inmice for avermectin B1 by both above-mentioned methods were all negative.

于接毒后第6h和14h取材、制片、C-带染色，所观察到的小鼠次级精母细胞染色体畸变分析试验结果均为阴性。

Simultaneous studies were conducted on bone marrow micronucleus and spermatocyte chromosome aberration in mice, yielding negative results and no evidence of mutagenic effects.

同时报道了小鼠骨髓微核和睾丸精母细胞染色体畸变试验研究的结果，即两项试验均为阴性，无致突变效应。

They were spindle-shaped, and showed positive reaction to antibodies against vimentin, and negative reaction to antibodies against keratin.

结果： 3种方法获得的细胞形态和生物学行为大致相同；波丝蛋白抗体染色阳性，角蛋白抗体染色阴性。

IHC staining had a sensitivity of 87%, a specificity of 100%, a negative predictive value of 99%, and a positive predictive value of 100%.

IHC染色的敏感性为87%、特异性为100%、阴性预测值为99%、阳性预测值为100%。

Coagulase-negative staphylococci are important microorganisms in fermented and cured meat products.

凝固酶阴性葡萄球菌是重要的微生物发酵和腊肉制品。

The basophilic stippling is not accurate at early stage, and we must pay attention to the polychromatic erythrocyte and the hypochromic cell when considering lead poisoning.

嗜碱性点彩RBC在铅中毒早期呈阴性时，应注意嗜多色性RBC和低色素性RBC的变化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。