皮托管可以用作测量流体的（）。
A、点流速
B、断面平均流速
C、压强
D、流量
参考答案：A
—He mentioned _____ his homework every right.
—Yes, everyone in our class hopes the teachers _____ us less homework to do. [ ]
A. that he spent a lot of time on, give
B. he spend much time in doing, to give us
C. he spent lots of time doing, to give us
流行于古代新疆的袄教来源于什么地方？（）
