利用频谱多普勒超声检测血流速度,若要得出较为准确的结果,血流方向与声束夹角θ应设置为()
A.<120°
B.<110°
C.<100°
D.<90°
E.<60°
参考答案:E
Each country, of course, in _______ Copenhagen has its own particular priorities and concerns, which is why ________ agreement is so difficult to reach.
A.the; an
B./; an
C.a; the
D./; the
当事人认为药品监督行政处罚侵犯其合法权益的怎么办?