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问题 单项选择题

治疗咽喉红肿疼痛，以下药中宜选用()

A.党参

B.扁豆

C.山药

D.甘草

答案

参考答案：D

解答题

已知抛物线的顶点坐标是（-2，1），且过点（1，-2），求抛物线的解析式。
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选择题
John, a friend of mine, _____ got married only last week, spent ＄3000 more than he _____.

A. whom; will plan
B. who; has planned
C. whom; would plan
D. who; had planned
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