2 Is the attic likely to be a room at the top of the house?
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3 Are creaky boards likely to make a noise?
A. 对
B. 错
4 Is a footstep the sound you make when walking?
A. 对
B. 错
5 If you do or feel something genuinely, are you being deceitful and unkind?
A. 对
B. 错
肺
A. 左肺分为三叶
B. 位于胸膜腔内
C. 右肺分为二叶
D. 肺静脉内含静脉血
E. 右肺分为三叶
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