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【简答题】
从对话后的方框中选择适当的选项补全对话。 Lucy: Mum, could you help me, please? Mum: 1______ Lucy: I want to have a pizza. But I don't know where to buy. Mum: 2______. What size would you like? Lucy: Medium. Mum: What kind of pizzas would you like? Lucy: I'd like a potato, onion and cheese pizza. Mum: 3______ Lucy: Yes, I'd like a box of milk. Mum: Ok. I'll go and buy them. Lucy: 4______ A. Thank you. Mum. B. Would you like something to drink? C. Sure! What's the matter? D. Ok, I can help you.
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皮皮学刷刷变学霸
举一反三
【简答题】正常血液的pH值维持在______之间,平均为______。
【简答题】何谓实物的逆向工程?
【单选题】在下列各种情况中，属于自身调节的是
A.
血糖水平维持相对恒定
B.
血液PH值维持相对恒定
C.
当平均动脉压在一定范围内变化时，肾血流量维持相对恒定
D.
全身血压维持相对恒定