第16题: [单项选择]A The class is going to study them.
B They evolved from brachiopods.
C They are similar to brachiopods in appearance.
D They belong to the same species as brachiopods. 参考答案:C 答案解析:[听力原文]
Why does the prof mention bivalve mollusks
第28题: [单项选择]If you carry this ______ attitude to the conference, you will ______ any supporters you may have at this moment. A. belligerent...delight B. truculent...alienate C. conciliatory...defer D. supercilious...attract E. ubiquitous...delight 参考答案:B