女性,35岁,临床表现为腹痛,寒热,黄疸。首选的辅助检查方法是
A.ERCP
B.CT
C.BUS
D.CT
E.MRI
参考答案:C
32. _________ girl in red has formed the habit of walking her dog at dusk every day.
A.A; /
B.A; the
C.The;/
D.The; a
每个排烟系统设有排烟口的数量不宜超过()个,以减少漏风量对排烟效果的影响。
A.10
B.20
C.25
D.30