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

Which of the following is NOT true（）

A．Only the female mosquito bites.
B．No one likes the mosquito.
C．Mosquitoes will bite everyone.
D．Mosquitoes lands on your body without letting you know.

单项选择题

Various governments are taking actions on video games because（）

A．schoolchildren waste time and money on them
B．they can easily be turned into a form of gambling
C．they are becoming a social problem, affecting both adults and children
D．too many adults spend working hours playing them