心肌炎在下列哪种情况下可试用糖皮质激素()。
A.ST-T改变
B.病理性Q波
C.血沉加快
D.房室传导阻滞
E.发热
参考答案:D
We had a marvelous holiday: only the last two days were slightly _____ by the weather.
A.damaged
B.hurt
C.ruined
D.spoiled
在涉外接待礼仪中,应在()中遵守“信守时间”的原则。
A.人际交往
B.社交活动
C.日常生活
D.对外交往