单项选择题

At the international conference, the famous scientist gave an excellent report based on his recent experiment.（）

A．在国际会议上，这位著名科学家根据他最近的实验结果做了精彩的报告。
B．在国际会议上，这位著名科学家宣读了他最近实验的精彩报告。
C．在国际会议上，这位著名科学家以他的精彩报告为基础，做了实验。
D．这位著名科学家以最近的国际会议为基础，宣读了精彩的实验报告。

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热门试题

单项选择题

What does the underlined word refugees mean（）

A. People forced away from their homeland
B. Sudden changes caused by world climate
C. Animals whose lives are closely connected with weather
D. Bad effect of climate changes

填空题

When did researchers begin reporting the benefits of family dinnerResearchers begin reporting the benefits of family dinner about（）