题目内容

37. James ate a big meal _______________ he said he wasn't hungry.

A. if
B. though
C. because

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38. She _____________ Souuth America at the age of 15 and he has never returned.

A. leaves
B. left
C. has left

39. Would you like a cup of tea?_______________. A glass of water will do.

A. I think so
B. No, thank you
C. Yes, please

40. When I was a child, I would spend hours every day ______________ the piano.

A. play
B. playing
C. played

关于围护结构温差修正系数a值的大小，下列说法错误的是（）。

A. 围护结构温差修正系数的极值是1
B. 非供暖房间保温性能越差，温差修正系数越大
C. 非供暖房间保温性能越好，温差修正系数越大
D. 非供暖房间透气性能越好，温差修正系数越大