用治血不养心引起的虚烦不眠,惊悸怔忡之证,宜选用的药物是()
A.酸枣仁、柏子仁
B.牛黄、珍珠母
C.朱砂、磁石
D.石菖蒲、远志
E.琥珀、龙骨
参考答案:A
— ________ you start learning English?
—At the age of five. [ ]
A. When do
B. When did
C. How long do
D. How long did
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