B27的知识大全

问题详情：、数列对任意满足，且，则等于(  ) A.24            B.27           C.30               D.32【回答】B知识点：数列题型：选择题...

问题详情：一条肽链有9个肽键，控制这条肽链合成的基因中至少要有的碱基个数（  ）A.9个   B.27个 C.30个   D.60个【回答】D知识点：基因的概念与表达题型：选择题...

RelationshipbetweenHLA-B27SubtypeandAnkylosingSpondylitis;TheClinicalStudyofDu-MoxibustionTreatingontheCasesofGeneHLA-B27(+)andHLA-B27(-)ExpressionofAnkylosingSpondylitis;ClinicalStudyonDu-moxibustion...

问题详情：已知：，，则的值等于（     ）   A.44       B.27        C.25       D.37【回答】D  知识点：乘法公式题型：选择题...

问题详情：在等比数列中，，且为和的等差中项，则为A.9                  B.27                 C.54                 D.81【回答】B【解析】【分析】根据题意，设等比数...

问题详情：设等差数列 的前n项和为 ，已知 ，则 （       ）A.-27                 B.27              C.-54          D.54【回答】A【解析】【详解】知识点：数列题型：选择...

B27Associationisaselfhelpgroupestablishedin1995byagroupofAnkylosingSpondylitispatients.OBJECTIVE:Toexploretheaccuracy,sensitivityandspecificityofIMS-ELISAfordetectingHLA-B27anditsvalueintheauxiliarydi...

问题详情：已知等差数列{}中,则该数列前9项和S9等于(   )A.18          B.27           C.36           D.45【回答】D知识点：数列题型：选择题...

问题详情：已知为等差数列，若，则A.24                B.27             C.15               D.54【回答】B知识点：数列题型：选择题...