Last Saturday Mrs. Smith didn't clean the rooms because______.
A. she didn't feel well
B. mary came to see her
C. she had to go to work
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The message the writer wants to pass on to the readers is that
A. wild animals are our friends
B. wild animals can he dangerous
C. bears are very useful animals
D. bears will be extinct very soon
The woman student thought that ______ of all the six teachers.
A. Mr. Smith did the worst (最坏的) in teaching
B. Mr. Smith did the best (最好的) in teaching
C. Mr. Smith did as well as other five teachers
The writer states that when Houdini escaped from the milk churn ______.
A. the role of the orchestra was important
B. he made use of the hacksaw to free himself
C. the container had been modified beforehand
D. he was in full sight of the audience
Which of the following statements is TRUE？
A. The subjects in a cross-sectional research are not of the same age group.
B. The methods of study in longitudinal research will not change over time.
C. Longitudinal research is reliable only in seeking understandings of the effects of early experiences on later development.
D. Cross-sectional methods are not usually adopted in studying, for example, the changes in intelligence over a thirty-year period.
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