由于反动式叶片既能将蒸汽的动能转变为机械能，又具有蒸汽在叶片内膨胀做功的作用，因而反

法洛四联症患儿手术治疗年龄一般应选在()。

A．1岁以内

B．1～2岁

C．2～3岁

D．4～5岁

E．5～6岁

下列关于世界贸易组织与前关税与贸易总协定在调整范围上的选项有哪些是正确的( )。

A．世界贸易组织调整货物贸易、服务贸易及与贸易有关的知识产权

B．世界贸易组织调整的货物贸易还包括了纺织品贸易和农产品贸易

C．前关税与贸易总协定调整所有的货物贸易

D．前关税与贸易总协定只调整货物贸易，但又不包括纺织品贸易

Microsoft’s COM is a software （66） that allows applications to be built from binary software components. COM defines a binary standard for function calling between components, a way for components to dynamically discover the interfaces implemented by other components, and a mechanism to identify components and their interfaces uniquely.OLE is a compound （67）standard developed by Microsoft. OLE makes it possible to create （68）with one application and link or embed them in a second application. Embedded objects retain their original format and （69）to the application that created them. Support for OLE is built into the Windows and MacOS Operating Systems. A （70） compound document standard developed mainly by Apple and IBM is called OpenDoc.

A．architecture

B．protocol

C．procedure

D． structure

服装销售卖场一般分为哪几个部分？（）

A.付款部分

B.营业部分

C.服务部分

D.导入部分

E.柜台部分

轨枕高度用（）进行检测。

A、游标卡尺

B、毫米刻度钢直尺

C、以上二者均可