气相色谱检测器灵敏度高并不等于敏感度好。
参考答案：对
______既不是图像编码也不是视频编码的国际标准。
A．JPEG B．MPEG C．ADPCM D．H.261
Some time after the rockets and the space shuttle are _____, the rocket will _____ the space shuttle and ____ the sea.
A．set sail; broadcast; drop in
B．ruled out; orbit; show up
C．stepped up; survive; fall for
D．launched; separate from; fall into
