In young California during the days of the gold rush______.
A. people usually used a rope as a weapon
B. it was very common to hang people with a rope
C. gold-mining areas were measured by miners with a rope
D. laborers were often whipped with a rope as a punishment
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According to the professor, what is one advantage of a survey？
A. It is the least expensive method of research.
B. It does not have to be conducted face-to-face.
C. It provides more information than any other method.
D. It is the most enjoyable method for the researcher.
Listen again to part of the discussion．Then answer the question. Why does the professor ask this:
A. He does not know whether May or Kay is a better manager.
B. He disagrees with what the man says about May and Kay.
C. He wants to invite either May or Kay as a guest speaker.
D. He wants a more satisfactory response from the class.
What is the lecture mainly about？
A. The role of ethylene in plant aging processes
B. The discovery of ethylene by fruit growers
C. Differences between ethylene and other hormones
D. How plant hormones influence growth
农村分布率最高的是()
A. 小学
B. 普通中学
C. 师范学校
D. 私立中学
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