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问题 单项选择题

（）是用片状山石，连续铺砌在山脚的边缘，做成如同山边小路，以突出假山上下的横竖对比。

A、凹进脚

B、凸出脚

C、断连脚

D、平板脚

答案

参考答案：D

选择题
— How come you still work here? I hear your company has bought a new office building.
— But the newly-bought building ____.

A. has decorated
B. is decorated
C. is being decorated
D. will be decorated
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选择题

平静吸气时，呼吸肌的活动情况是

A．肋间肌收缩、膈肌收缩

B．肋间肌收缩、膈肌舒张

C．肋间肌舒张、膈肌收缩

D．肋间肌舒张、膈肌舒张
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