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问题 选择题

当我国大部分地区盛行冬季风时，巴西高原的季节和昼夜情况是 [ ]

A、正值旱季，昼长夜短

B、正值雨季，昼短夜长

C、正值雨季，昼长夜短

D、正值旱季，昼短夜长

答案

答案：C

单项选择题

The Customs surveillance zone include following places except ______.

A．Any seaport, railway and high way station, airport, border pass or international postal matter exchange where there is a Customs establishment
B．any place where Customs control is conducted
C．any place without a Customs establishment but which has been approved by the state council as a point of entry and exit
D．any place along the border of the country
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判断题

在上颌牙根拔除的过程中，使用牙挺时能以腭侧骨板为支点。
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