沪江网校开设英、日、法、韩、泰、德、西班牙等13国外语课程,涵盖升学应试、海外留学、工作商务等。丰富全面的课程类型,为不同需求的学习者提供学习方案。
By employing Pd(OAc)2, Cs2CO3, or NaOH, and the new ligand (t-Bu)2PNP(i-BuNCH2CH2)3N (3a), an electronically diverse array of aryl bromides and chlorides possessing base-sensitive substituents (nitro, ester, and keto) provide coupling products with bulky aryl amines in good to excellent...
class除了表示“班级”的意思,还会有“等级、阶级、阶层、类别、等级制度”等意思。 最开始的时候指的古罗马打仗期间召集起来的一群一群士兵,在军队里有各种各样的等级,它后来指古罗马社会里把人分成的6个等级,再后来就是现在的用法。 今天我们就用单词class来旧辅新知...
这本教材一共分为20个课时。 此外,lesson多用于指学习某种技能的课程,比如游泳课→swimming lesson。 lesson除了表示课堂学到的知识,还可以指生活中得到的经验教训: Never forget this lesson. 永远不要忘记这个教训。 词组teach sb a lesson就是教训某人,可以这...
MicrosoftGraphOAuth2PermissionGrant withAdditionalProperties(Map<String,Object> additionalProperties) Set the additionalProperties property: oAuth2PermissionGrant. MicrosoftGraphOAuth2PermissionGrant withClientId(String clientId) Set the clientId property: The id of the client service pr...
There is no η2-olefin intermediate on the reaction path. DFT calculations seeking the energy and structure of the two carbenes Cp2ZrHCl[CF(CH3)] and Cp2ZrFCl[CH(CH3)] are also described. 展开 DOI: 10.1021/ja0024340 被引量: 1 年份: 2001 ...
VisualStudioServices.VS2022_2Services() Initializes a new instance of theVisualStudioServices.VS2022_2Servicesclass. Properties Espandi tabella Methods Espandi tabella CreateFileSystemProviderServiceDescriptor(ServiceMoniker) Creates aServiceRpcDescriptorfor an extension to theFileSystemservice. An extension...
Sign in Sign up All categories Featured selections Top rankingNew arrivalsTop Deals Sample Center Online Trade Show Tips LIVE Global suppliers Trade Assurance Enjoy protection from payment to delivery. Learn more Safe & easy payments Money-back policy ...
被引量: 11发表: 1999年 Copper(I) and gold(I)complexes with a phosphorus-sulfur ligand. X-ray structure of AuCl[(C 6 H 5 ) 2 PCH 2 CH 2 SCH 3 ] Complexes of Au(I) and Cu(I) with 1-(thiomethyl)-2-(diphenylphosphino)ethane (PSMe) have been prepared; the two products have ...
2 (2.0) Other attributes Place of Origin Guangdong, China Brand Name DN Model Number EX3000 Product Name class ab integrated amplifier 8Ω Stereo Power 2x800w 4Ω Stereo Power 2x1200w 8Ω Bridge Power 1600w Color: Black Dimension: 605x585x165mm Weight: 22kgs Application Event/Hotels/Show...