Nor is the global economy forgiving of an American workforce with increasingly weak literacy, math and science abilities.

There are also dozens of summer camps — many attached to universities — that aim to prepare elite math students.

还有许多大学附属夏令营都把目标放在培养优秀的数学学生上。

六级真题- 2017年 6月 2卷 信息匹配

But there are initiatives in place to try to get more underrepresented students involved in accelerated math.

但也有一些项目可以争取让更多的学生参与高数学习。

六级真题- 2017年 6月 2卷 信息匹配

Many social and cultural factors play roles in determining which promising students get on the path toward international math recognition.

决定哪些有前途的学生能够得到国际数学界的认可受许多社会和文化因素的影响。

六级真题- 2017年 6月 2卷 信息匹配

Should we change the way math is taught in schools, or eliminate some courses entirely?

我们应该改变学校教授数学的方式，还是应该完全取消某些课程?

六级真题- 2018年 12月 2卷 阅读A

His score in math may be poor, but he will surely be ahead in foreign languages.

他的数学成绩不好，但在外语方面，肯定会名列前茅。

词典精选例句

The fact remains that we are still lagging behind the other classes in math.

事实是我们在数学方面仍然比别的班落后。

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He feels that he's ready for his math exam.

他认为他已准备好参加数学考试了。

外研社英语同义词辨析词典

His mannerisms are more those of a preoccupied math professor

他的举手投足更像是一个全神贯注的数学教授。

柯林斯高阶英汉双解学习词典

Results from the mutational analysis and qRT-PCR suggested that the EnvZ/ OmpR system contributed to osmotic stress response of S. oneidensis and very likely engaged a similar strategy employed by E. coli, which involved reciprocal regulation of two porin coding genes.

突变分析和qRT-PCR结果表明，EnvZ/OmpR系统参与了S.oneidensis对渗透胁迫的反应，并很可能利用了与E.coli类似的策略，即对两个孔蛋白编码基因的表达进行反向调节。

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Methods: Porin B of gonorrhoeae expressed in E. coli by a recombinant plasmid and purified, were administered subcutaneously into the rabbit back. The serum antibody change and the highest titer of the rabbit was dynamically examined after immunized by ELISA.

方法：兔背皮下注射经原核构建表达并纯化的淋球菌孔蛋白B，ELISA动态检测免疫后大耳兔血清抗体滴度的变化及最高效价；

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Objective Clone the genes of porin PIB and PIA of Gonococcus. To construct a recombinant eukaryotic expression vector containing both porin gene PIB and PIA, and to confirm the expression of pCI-PIB-PIA in muscule cells.

目的克隆淋球菌孔蛋白PIB和PIA基因并构建融合蛋白真核表达质粒pCI-PIB-PIA，了解pCI-PIB-PIA能否被小鼠骨骼肌细胞摄取并表达。

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DTH was observed on the femoral leg of the rabbit administered intradermally with porin B.Slide agglutination reaction and bactericidal activity were measured by immunized rabbit serum in vitro.

后腿皮内注射孔蛋白B，观察迟发型超敏反应（DTH）、免疫血清体外玻片凝集及抗菌作用。

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Objective To clone porin B ( P ⅰ B) sequences of Neisseria gonorrhoeae and analyze the protein expression as basis of research in detection, prophylactic and therapeutic vaccine against the pathogen infection.

目的克隆和分析淋病奈瑟菌孔蛋白（porinⅠB，PⅠB）的基因序列并表达相应的蛋白质，为淋病奈瑟菌感染的检测和基因工程疫苗的研究与开发建立基础。

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Since the Hp adhesin conservative region ( AB) is outer membrane protein and porin type component, while these two kinds of protein are the excellent immunogen candidates of vaccination.

鉴于Hp已证实的四种粘附素保守区（AB）是外膜蛋白（OMP）和膜孔素（porin）样成分，而外膜蛋白和膜孔素样成分是优秀的疫苗候选抗原。

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The protective rate of porin to the mice challenged with 500 LD50 murine Salmonella typhi was 70%. The results showed good immunogenicity of STM-porin.

以500LD50鼠伤寒沙门氏菌攻击，其保护率为70%，提示STM－porin具有较强的免疫原性。

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Study on Level of Delayed-type Hypersensitivity ( DTH) and Transfered Protective rate of Immunized T Cell Induced by Porin of Salmonella Typhimurium in BALB/ C Mice

鼠伤寒沙门氏菌porin诱导BALB/C小鼠迟发性变态反应和T淋巴细胞转移保护的研究

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Using carbapenem antibiotic can induce the deletion of out membrance porin gene, thus increasing MIC values of carbapenem antibiotic.

碳青霉烯类药物的使用可以诱导外膜孔道蛋白基因缺失，从而增加对碳青霉烯类抗菌药物的MIC值。

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The deeper studies on the function of Porin would be of great importance in illuminating the mechanism of gonococcal pathogenesis and host anti-infection immunity.

深入研究孔蛋白的免疫功能，对阐明淋球菌的致病机制及宿主抗感染免疫机制具有重要意义。

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Conclusion A plasmid recombinant encoding porin B of Neisseria gonorrhoeae has been successfully constructed and expressed in E. coli.

结论淋病奈瑟菌孔蛋白PⅠB原核表达质粒构建正确。

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This article also gives a presumption to T-DNA's transport: The plant cell wall's porin may be T-DNA's natural channel.

对延宕至今的T DNA穿壁问题作了推测：植物细胞壁表面可能存有T DNA的天然穿壁孔道。

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