第一章测试1.The essential elements of research are（ ）.
A:answers B:skills C:questions D:a systematic approach
答案:ACD
2.The qualifying features of good questions can be illustrated by the following adjectives （ ）.
A:answerable B:difficult C:original D:significant
答案:ACD
3.An original question does need to be totally new.（ ）
A:错 B:对
答案:A
4.No approach is perfect.（ ）
A:错 B:对
答案:B
5.If there is any alternative answer, the validity of study will be called into question.（ ）
A:错 B:对
答案:B
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