皮皮学，免费搜题
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【单选题】
指导患者正确服用硝酸甘油以缓解心绞痛的方法是
A.
药物置于口中，立即用温开水送服
B.
观察头晕、血压升高的表现
C.
舌下含药平卧或坐稳，以防发生低血压
D.
因药物在舌下被唾液溶解而减少吸收
E.
如果30分钟后不缓解，再服一片
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reach a group of people at one time conveniently
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pass on much more information than the later
D.
get in touch with one's friends faster than the later
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五年至十年
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pass on much more information than the latter
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