Formulatedin1823,theMonroeDoctrineassertedthattheAmericaswerenolongeropentoEuropeancolonization.
Whencarbonisaddedtoironintheproperproportions,theresultissteel.
Withlasersscientistscanprobemanyphysicalprocesses,suchascombustion,oncebeyondourken.视野
InthenortheasternUnitedStates,itrainsintermittently间歇地throughoutthespring.
HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
TheNativeAmericaninterpreterSacajaweawasavaluablememberoftheLewisanddarkexpeditionin1805.
--Look! That man looks like Mr White.
--It _________ be him. Mr White _________America yesterday.
______ progress you have make this term!
The boy bought a new dictionary__________ he turned for help.
完善售后服务对我国下列哪种产品出口市场的巩固与扩大最为重要()。
以下哪一项是密钥托管技术?（）
The school _________ we met a famous scientist is not big.
The shop _________ until 7 o ’ clock.
从海外投资企业所有权结构来看，所占比重最大的是()
The Great Wall in China is one of the few _____ objects on the earth _____ from the moon .
近年来，我国引进技术的各类企业中引进额最多的一类企业是______