材料一 在很长一段时期内,历史学家只研究那些留下了书面记录的社会,而没有书面记录的时代和地区则交给了考古学家。……非洲史学家们以跨学科的历史研究方法为其崇尚,也就是说,他们非常强调利用能告诉他们非洲过去发生过什么的任何形式的证据。
——埃里克·吉尔伯特等《非洲史》
材料二 西方心理学包含着一种愿望,或者说一种需要.那就是把非洲当成欧洲的陪衬,当成一个既遥远又不了解的虚无缥缈的地方,以此来烘托出欧洲自己的智力优越性。
——阿契贝《1967—1987年论说文集:希望与障碍》
请回答:
A:
根据短文理解,选择正确答案。
There are fifty students in our class. There are twenty-four boys and twenty-six girls. Some students live near the school, and some others live far from school. About half of the students usually come to school by bike. They often get to school at a quarter to seven. About fifteen students often come to school by bus. They often get to school very early, too. Another ten students come to school on foot. Their homes are near the school, but they are often late for school, because they get up late.
读“太阳系示意图”(如图所示),完成下列问题.
(A)取出的鞋都不成双;
(B)取出的鞋恰好有两只成双.
同学们梳理了教材中与压强知识相关的实验,如图所示,其中分析正确的是( )
“‘新政’的执行让政府获得迅速发展,这在美国历史上是一个分水岭”。材料中的“分水岭”意指美国( )