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英汉互译：Eiffel Tower

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英汉互译：The statue of Liberty

Complete it with the correct forms of the verbs given.Electricity is a basic part of nature and it is one of our most widely used forms of energy. Before electricity _____ (discover) over 100 years ago, houses were lit with kerosene lamps, food (cool) in iceboxes, and rooms (warm) by wood-burning or coal-burning stoves.Electricity _ (make) our lives easier. Right now, most of our electricity _____ (come) from burning fossil fuels (oil, natural gas, and coal). The problem is that fossil fuels will eventually run out. If we want to keep using our televisions, air conditioners, microwave ovens, and computers, we need to find another way to make electricity.

急性心肌梗死时最早的心电图改变为( )

A. ST段下移和时限延长
B. QRS波群振幅降低和时限延长
C. 高耸、直立、宽大、对称T波
D. Q-T间期延长和对称性T波
E. 室性期间收缩伴房室传导阻滞

急性心肌梗死的心电图基本图形为( )

A. 缺血型改变、损伤型改变、坏死型改变
B. 超急性期、急性期、亚急性期、陈旧期
C. T波倒置、ST段抬高、异常Q波
D. T波增高、ST段压低、QRS波群变小
E. 以上都不是