x表示一个两位数，y表示一个三位数，如果将x放在y的左边，则得到一个五位数是（ ）．
1000x+y．
高血压病合并冠心病，最好选用的降压药物是
A．呋塞米B．利血平C．尼群地平D．卡托普利E．硝普钠
The period, which has been referred to as ______ in the literary history of the United States, is ranging from 1865 to 1914.
A. the Age of Realism B. the Age of RomanticismC. the Age of Renaissance D. the Age of Transcendentalism
