A、自填问卷
B、替代访问
C、电话问卷
D、访问问卷
TheeconomyofDallas,Texas,isstronganddiversified.
A、inflated
B、stable
C、varied
D、well-regulated
A、研究对象具体独特的现象
B、特定行为或问题进行探索研究
C、使用问卷调查收集资料
D、对访问结果进行数据统计
Peoplewhodonotsleepenoughtendtobecomeirritable.
A、easilyannoyed
B、ill
C、weary
D、stiffandsore
DoubleEagleinthefirsttransatlanticballoon,wasgreetedbyavidcrowdsinFrance.
A、eager
B、surging
C、appreciative
D、vigorous