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【单选题】
( )某黄酮化合物的醇溶液,加入二氯氧锆甲醇液呈鲜黄色,再加入枸橼酸甲醇液黄色不
A.
C5-OH
B.
C7-OH
C.
C3-OH
D.
C6-OH
E.
C8-OH
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参考答案:
举一反三
【简答题】Oral Enlish: ordering food
【简答题】he man is ordering food for a ___________ team.A. basketball B. soccer C. tennis
【多选题】Which of the followings are used in ordering food in a fast food restaurant?
A.
What would you like to get?
B.
What can I get for you?
C.
For here or to go?
D.
Regular or diet?
E.
What’s your house special?
【简答题】Ordering food ____ a restaurant is a way to save time.
【简答题】听下面一段对话,回答第1题。 1. What's the woman doing? A. Ordering some food. B. Selling some food. C. Cooking some food.
【单选题】通过采用以下哪种措施,飞行员可以克服或避免换气过度:( )
A.
放慢呼吸速率、吸入二氧化碳气体或进行交谈
B.
加快呼吸速度以便增加肺通气量
C.
有飞行任务时,不服用抗阻胺,感冒药和镇痛药等容易引起换气过度的药物
【判断题】ordering food online
A.
正确
B.
错误
【多选题】Extensive Watching Bill Smith and Laurent White are ordering their food. Watch the video clip and choose what they order. ordering food.mp3:
A.
Cold Dishes
B.
Hot Dishes
C.
Hot Soups
D.
Rice & Noodles
E.
Drinks
【简答题】Ordering food from a restaurant is a way .
【多选题】下列未包含在进口货物价格中的项目,应计入进口货物完税价格的有
A.
买方负担除购货佣金以外的佣金及经纪费
B.
卖方负担的佣金
C.
由卖方负担的经纪费
D.
由买方负担的经纪费
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