患者男性,25岁。急性渗出性心包炎入院。行X线检查,心影多呈
A. 梨形
B. 向左侧增大
C. 向两侧增大,立位时呈烧瓶样
D. 向两侧增大,立位时呈球形
E. 靴形
查看答案
患者男性,15岁。寒战、高热,胸闷气促。入院体查:体温39.5℃,血压100/85mmHg,心率108次/分,血白细胞明显升高,核左移。下列对诊断心包炎的最有意义的体征是
A. 心包摩擦音
B. 心包积液征
C. 心包压塞征
D. 心脏听到第三心音
E. 心脏二尖瓣关闭不全杂音
6.The college campus enjoys the ______________ of being the most beautiful in the city.7.Women who exercise regularly, especially in _____________ activities, typically lose iron.8.Each winner received a ___________ cash prize plus a laptop.9.This official came to ___________ for being fair and honest in office.10.Needless to say, his habit of talking loudly at night doesn’t _________ him to his roommates.
移动通信可利用的频谱资源( )
A. 有限
B. 无限
C. 不能确定
D. 可以再生
我国目前有四大运营商,其中,TD-SCDMA是由()在运营。
A.中国移动
B.中国联通
C.中国电信
D.中国广电