X线管阳极靶面材料的特点不包括
A、原子序数高D
暂无解析
Shesat________thetableintherestaurant.
Theword“minister”originallymeant“aservant”,butnowhaschangedto“aheadofaministry”.Thisprocessofmeaningchangeiscalled______.
Hecannotchoosehisownjob,________canI.
Countrylifeisbetterthancitylife________itoffersfreshairandnoiselessenvironment
Thatisthehouse_______youcanenjoythescenery.
