2022-2023学生双语报RX版课标一答案，目前学生双语报答案网已经整理了2022-2023学生双语报RX版课标一答案的各科答案和试卷，更多学生双语报答案请关注本网站。

词and.第四部分写作第一节短文改错Today I was informed to have a nucleic acid test.Because it was my first time to have it,s I felt a littlenervous.At 8:00 am,I line up at the square.There werelinedso many peoplewaited in the queue.Everyone lookedwaitingseriously and moved slowly by order.When it was myseriousinturn,I first showed my informations,and then I came toinformationthe laboratory area.A staff member told me to take themiteasy and then scratched my throat with a cotton stick andput it in a small tube.I completed it most smoothly than Imorehad expected.Seeing the volunteers working busily,Idecided A join them.I was proud of that I did today.towhat一士士生、

11.A【解析】根据黄土高原的位置判断，该高原的东南部为温带落叶阔叶林带，该自然带的分布面积最大。选项A正确。12.B【解析】根据黄土高原降水由东南向西北递减的规律和黄土高原自然带的分布判断，黄土高原自然带的分异与水分条件密切相关，应为经度地带分异规律的体现。选项B正确。13.B【解析】位于黄土高原西北边缘的自然带为温带草原荒漠带，因其分布面积较小，说明黄土高原的大部分地区位于我国季风区，夏季受夏季风影响，降水较多。选项B正确。