We should go to school at 8:00 _____ school mornings. [ ]
A. at
B. in
C. on
D. of
答案:C
临床诊断急性胆囊炎的最主要根据是()
A.右上腹持续性剧痛
B.Murphy征阳性
C.胆囊区压痛
D.黄疸
俄罗斯民族乐派钢琴音乐中旋律特点是()。
A.线条悠长、气息宽广、热情狂放
B.线条悠长、气息宽广、热情忧郁
C.线条悠长、气息宽广、忧郁紧张
D.线条单一、气息宽广、热情忧郁