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问题 多项选择题

双层平壁定态热传导，两层壁厚相同，各层的导热系数分别为λ1和λ2，其对应的温度差分别为Δt1和Δt2，若Δt1>Δt2，则（）。

A.λ1>λ2

B.λ1<λ2

C.q12

D.q1>q2

答案

参考答案：A, D

完形填空

短文填空  先通读下面的短文，掌握其大意，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。所填单词在题后横线上必须完整写出。（本大题共5分，每格0.5分）

Harry Potter is a set of popular books created by J.K.Rowling in Britain.Most teenagers in China and in other countries enjoy reading them.The books tell us some s【小题1】about a talented wizard (天才魔法师), Harry Potter.When he was eleven years old, he had an u【小题2】life.However, a strange letter changes e【小题3】.It said he was accepted (接受) by Hogwart’s — a magic school.Harry felt very happy because it was closed to the common people.All kinds of adventures (冒险) h【小题4】to Harry.He met Ron Weasley and Hermione Granger on his way to school.They became good friends l【小题5】.Harry did well in his lessons and worked hard to play magic.Harry always had a positive attitude (积极的态度) when he f【小题6】the difficulties.With the help of his friends, he tried his best to do everything.F【小题7】, the world peace came back.Smile a 【小题8】on everyone’s face.If someone wants to know what t【小题9】place in the magical world , he will have to read the set of books by h【小题10】!
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单项选择题 A1型题

一患者3天前自高处坠下，背部疼痛，双下肢不能活动。此时应注意何种并发症（）

A.肝脾破裂

B.泌尿系结石

C.压疮

D.坠积性肺炎

E.骨化性肌炎
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