在有害气体净化方法中,()是一种高效净化方法,主要适用于工业气体的除尘净化。
参考答案:袋滤法
Students are required to _______ down what the teachers teach in class.
Which of the following is wrong?[ ]
A. set
B. put
C. write
D. make
房间隔缺损时血流量增多的部位是
A.左心房
B.左心室
C.主动脉
D.体循环
E.肺循环