对临床诊断困难的急性腹痛病例,可进行()。
A.选择性血管造影术
B.X线钡餐检查
C.内镜检查
D.放射性核素肝、胆、胰扫描
E.诊断性腹腔穿刺
参考答案:E
Understanding the cultural habits of another nation, especially _______ containing as many different
subcultures as the United States, is a complex task. [ ]
A. one
B. the one
C. that
D. such
防止水内冷发电机水路堵塞过热有哪些措施?