In the United States, the foreign policy is decided by the ________ government, not by each state.
A、federalA
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Thedoctors_______themedicinestothepeopleinthefloodarea.
Pinetreesareusuallybelievedto_______coldweather.
He_______tostudyharderinthefuturesothathecouldhavemoreopportunitiestofindabetterjob.
Thisriverissobigthatitisimpossibletobuilda_______underitwithoutmoderntechnology.
ProfessorSmithisalsothe_______oftheinternationalprogramoffice.Ifyouhaveanyproblemwhenyoustudyhere,youmaygotohimforhelp.