【单选题】下列哪个空调系统属于半集中式空调系统( )。.
【单选题】Which of the following is NOT an advantage of a well-spaced set of twenty to twenty four teeth ?
A.
These teeth would work harder and become healthier.
B.
Decay of teeth could not develop.
C.
We would eat the diet of our ancestors.
D.
Teeth can be extracted easily during childhood.
【单选题】风机盘管加新风空调系统属于( )空调系统。
【单选题】在空调系统分类中,风机盘管加新风系统应属于( )。
【单选题】风机盘管加独立新风空调系统属于( )系统。
【单选题】—How much is that T-shirt? —________. [ ]
B.
They are twenty dollar
C.
They are twenty dollars
【判断题】风机盘管加独立新风系统属于典型的半集中式空调系统。
【单选题】Her shoes _____ twenty dollars and his T-shirt _____ also twenty dollars. [ ]