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百度试题 结果1 题目二、找规律,写字母。1.hijkl m2. Cc Dd Ee Ff Gg3. pq rs_t u4. VvWw Xx Yy Zz5.FGHIJK6. Kk Ll Mm Nn Oo7.a b cde f8. Oq Rr Ss Tt Uu 相关知识点: 试题来源: 解析 答案见上
1 layer options: BOPP, CPP, PE, CPE, PP, PO, PVC, kraft paper, and more. 2 layer options: BOPP/CPP or PE, PET/CPP or PE, BOPP or PET/VMCPP, kraft paper, and more. 3 layer options: PET/AL/PE or CPP, PET/VMPET/PE or CPP, OPP/PET/PE or CPP, and more. Supply A...
3—氯—1, 2—二溴丙烷是一种杀根瘤线虫的农药,试问用什么原料怎样合成? 解:合成路线如下: ch3ch=ch 2 + Cl2 500 C ”CICH2CH=CH2 Br2 CICH 2- CH-CH2 I I Br Br (10) 4 —乙基—2 —溴苯酚 10.从苯和丙烯合成邻甲氧基苯基丙三醇单醚 I Br QH SQH OH OCH ...