患者10小时后出现烦躁不安，血压偏低，心率45次/min，心电示Ⅲ度房室传导阻滞，频发房性期前收缩，此时治疗应首先
A. 静滴异丙肾上腺素
B. 静滴普罗帕酮
C. 应用升压药
D. 临时心脏起搏
E. 静滴阿托品
Theodore Dreiser was a famous realist for his work
A. The Scarlet Letter.
B. Sister Carrie.
C. The Sun Also Rises.
D. A Farewell to Arms.
Of the Great Lakes,______is the largest freshwater lake.
A. Lake Michigan
B. Lake Huron
C. Lake Ontario
D. Lake Superior
Which of the following works best represents the national spirit of the 18th-century England？
A. Robinson Crusoe.
B. Gulliver"s Travels.
C. Mr. Jonathan Wild The Great.
D. A Sentimental Journey.
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