关于1onSept29th的百科

•  ThesuccessfullaunchofTiangong-1onSept.29th 

• 问题详情： ThesuccessfullaunchofTiangong-1onSept.29th _________asignificantstepinChina’splantobuildaspacestation.      A．signaled              B．marked      C．signed                D．proved【回答】*:B解析:考查动...
• 2020-05-1932978