关于/y/的音位变体,下列音标正确的是()。
A. 区[tþÁy]
B. 群[tþÁyn]
C. 月[çE]
D. 圆[çan]
ThemostsignificantfeatureofIrishlandscapeis()whichprovidepeatusedforfuel.
A. bogs
B. streams
C. islands
D. cliffs
Irelandhasthefollowingdemographicfeaturesexcept().
A. ithasalowbirthrate
B. ithasalatemarriageage
C. ithasanexcessoffemalesinthepopulation
D. ithasahighproportionofbachelorsandspinstersofallages
对钢筋混凝土梁表面进行正应力检测,应选贴()
A. 应变花
B. 2mm标距单轴应变片
C. 5-20mm标距单轴应变片
D. 40-150mm标距单轴应变片