某在建隧道用滤膜测尘法测定该隧道的粉尘浓度,采集了两个样品。样品-采样前滤膜质量W11=4000mg,采样后滤膜质量W12=4100mg；样品二采样前滤膜质量W21=5000mg,采样后滤膜质量W22=5120mg,流量计的读数Q=1.0m3/min,采样时间T=5min。结合上述内容,回答下列问题。（3）两个样品的偏差值是（ ）。

建筑的主体或主角是空间。正确错误

判断题建筑的主体或主角是空间。
正确
错误

____ is very nice of you to ____ me with food．（　　A.It;s...

单项选择题____ is very nice of you to ____ me with food．（　　

In Delphi, all Greeks go to a temple of a god for oracl...

单项选择题In Delphi, all Greeks go to a temple of a god for oracles and they asked the god for advice or prophecy. A priestess would give an answer on behalf of the god, which called an oracle. Who is the god?
A、Apollo  
B、Zeus  
C、Helios  
D、Athena