题目内容

挡土墙的计算通常不包括（)。

A. 挡土墙稳定性验算
B. 作用在挡土墙上的力系计算
C. 挡土墙截面强度验算
D. 地基的裂缝宽度验算

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治疗委症首选经穴是（）。

Biomarker 名词解释

简述急性毒性试验的定义、目的及如何进行试验观察。

YouworkastheapplicationdeveloperatCert-Tech.com.Cert-Tech.comusesVisualStudio.Net2005asitsapplicationdevelopmentplatform.YouuseaWindowsXPProfessionalclientcomputernamedClient01asyourdevelopmentcomputer.
Youaredevelopinga.NetFramework2.0applicationonClient01.Youwritethecodeshownbelow：PublicClassShape
PrivateshapeNameasString
PublicSubShape（ByValshapeNameasString）Me.shapename=shapeNameEndSub
PublicOverridableFuctionGetName（）AsStringReturnshapeNameEndFunction
PrivateSubDrawShape（）’AdditionalcodegoeshereEndSubEndClass
YoulaterdecidetohavetheapplicationcompiledandregisteredforCOMinteroperability.TheotherdevelopersonyourteamcomplaingthattheyareunabletocreateaninstanceoftheShapeclassintheirCOMapplications.YouarerequiredtoensurethatCOMapplicationsareabletocreateaninstanceoftheShapeclass.Whatshouldyoudo？（）