4G飞享套餐超出套餐后，省际漫游4G流量的资费为（）。
A.0.5元/M
B.1元/M
C.1.5元/M
D.0.29元/M
参考答案：D
In making a scientific experiment, one should not be _____ by temporary setbacks but should stick to doing it hopefully.
A．cast down
B．put away
C．taken in
D．put out
充分就业就是指对劳动力的完全利用，失业率为零。( )
