Modern economics ________ the country ’s agricultural policies.
A、undergoesC
现代经济学是国家农业政策的基础。考查形近动词词义选择题。A经历，经受B了解C成为…的基础D承担，保证
CollinsCOBUILDEnglishLanguageDictionary(1987)hassomeuniquefeaturessuchasdefinition,extracolumnand______.
Amongthefollowingwords,“______”doesNOThaveinflectionalaffixes.
Amongthefollowingwords,“______”containsanegativeprefix.
Theprofessorworkedfor7hoursata________.
Wecannotleavethistoughjobtoaperson________.
