3β-羟基-5α-雄烷-17-酮、表睾

下过积雪后的清晨，街道特别静，原因是（　　）

A．积雪反射噪声

B．此时没有任何噪声源

C．积雪能吸收噪声

D．积雪盖住了噪声

Do you know _______? [ ]

A. what did he say just now

B. how long we will stay here

C. who will we come to help

D. where is the neareast bus-stop

在《大脚到多变：中国百年间美女标准变迁》的文章中，介绍了20世纪中国女人美丽标准的变化轨迹。其中从20世纪初到三十年代的标准先后有“会说洋话的大脚女人”、“敢于婚姻自由的女人”、“有身段的才女”等，出现这些标准的原因不包括 [ ]

A．民族资本主义的发展

B．五四运动促进妇女的解放

C．西学东渐局面的加深

D．妇女完全摆脱了夫权束缚

弯制双曲唇弓的双曲部位，主要使用

A．梯形钳

B．卡环钳

C．平头钳

D．日月钳

E．小梯形半月钳

Service ______ Architecture aims to provide a model for the creation of service components in a widerange of languages and a model for assembling service components into a business solution - activities which areat the heart of building applications using a ______ architecture.
Service Data Objects aims to provide consistent means of handling ______ within applications,whatever its source or ______ may be. SDO provides a way of unifying data handling for databases and forservices. SDO also has mechanisms for the handling of data while ______ from its source.

A. link B. format C. procedure D. structure