2021－2022学英语报纸52期答案

2021－2022学英语报纸52期答案，目前我们已经整理了2021－2022学英语报纸52期答案的各科答案和试卷，更多试卷答案请关注本答案网。

【书面表达】One possible versionHello everyone!Hearing that the first Chinese Mars Probe Tian Wen 1 launched on July 23th, 2020 aims toland on Mars around May, 2021, it's a great honor for me to be here to congratulate beforehand onthe success. without doubt had it not been for the hard work, we Chinese couldn 't have gain suchgreat achievements. As a student of my generation, i firmly believe it is a time with bothchallenges and opportunities, when we could achieve whatever we fight for if we spare no effort toattain the goal. At the same time, the more i know about my country the deeper love I have for herWish China, my motherland, all the bestThat's all. Thanks for your listenin

4.C【解析】细胞骨架是由蛋白质纤维组成的网架结构，与细胞运动、分裂、分化以及物质运输、能量转换、信息传递等生命活动密切相关：高等植物细胞之间通过胞间连丝相互连接，也有信息交流的作用，A正确。胰岛素的作用效果反过来又可以作为信息调节该激素的分泌，即负反馈调节，B正确。神经递质在突触间隙中的移动方式是扩散，不需要消耗能量，C错误。信号分子的特异性受体可能位于细胞膜上（例如蛋白质类激素)，也可能位于细胞内（例如性激素），D正确。