When a spacecraft travels, one of the major problems is reentry into the Earth ’s _______.
A、surfaceB
暂无解析
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.
Withthehelpofthegovernment,alargenumberofpeople---_______afterthefloodin1991.
The_______workcontinuedformorethanaweekbuttherewasstillnosignofthemissingboy.
Hetriedto_______relationswithhisformerwifebuthefailed.
IntheUnitedStates,theforeignpolicyisdecidedbythe________government,notbyeachstate.
