百师联盟·2022届高三冲刺卷(三)3辽宁卷化学答案

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2.C【解析】解离的目的是使细胞分散开,甲未解离,细胞相互重叠;漂洗的目的是洗去解离液,便于染色,乙未漂洗,影响染色效果,染色体着色很浅不清楚;根尖5~7mm处为伸长区,伸长区细胞已失去分裂能力,染色体呈染色质状态,故观察不到染色体。故选C

Dear MichaelI have signed up for the NEPCs. In preparation for itI think what I am in desperate need of is to improve mywriting ability. Would you please do me a favor about it?I've finished an essay, but still find it far from satis-factory. I,'m not sure of the proper expressions of someEnglish words, which makes the essay lack naturalnessBeesidesthere may also be some mistakes in ginar ansentence pattern. So I wonder if you could help me withhese problemsI would appreciate it if you could give me some suggestions. Looking forward to your reply.ua