古人类和古生物化石属于古玩类收藏品。()
参考答案:错
患者男性,59岁,因心悸持续1小时就诊。心电图如图5-1所示,应诊断为()
A.室上性心动过速
B.房性心动过速
C.心房扑动
D.窦性心动过速
E.非阵发性交界性心动过速
It has to be a place __________ we can do lots of outdoor activities.[ ]
A. what
B. which
C. that
D. where