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【单选题】
完成对话:(2.0分) A. Can I sit at the table by the window? B. Would you like something else? C. Good evening. D. Please take your time. E. May I take your order now? Waiter(W): Good evening, madam. Customer(C): 21 W: A table for two? C: Yes. 22 W: OK. This way, please. Here is the menu. C: Thank you. W: 23 C: Yes, we’ll have chicken with potatoes, rice and vegetable soup. W : 24 C: No. That’s all. W: That’s what you ordered. 25A.
Can I sit at the table by the window?
B.
Would you like something else?
C.
Good evening.
D.
Please take your time.
E.
May I take your order now?
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皮皮学刷刷变学霸
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【简答题】生氰糖苷的毒性主要来自其水解后产生( )和( )毒性。
【多选题】以下描述正确的有
A.
亚硝酸盐食物中毒主要预防措施是禁食腐烂变质蔬菜
B.
木薯中毒特效解毒药是亚硝酸钠、硫代硫酸钠和亚甲兰
C.
木薯的毒性来自于木薯的根、茎、叶中均含有亚麻苦苷，水解后可游离出氢氰酸，导致组织细胞窒息而引起中毒
D.
毒蕈中毒的几种类型中，肝肾损害型最严重，病死率高
E.
河豚毒素在河豚鱼体内含量最多的部位是肝脏，其次是卵巢。
【简答题】3案例实现 学生需要根据已上传案例操作步骤完成案例要求。