外感风寒表证、外感风热表证均可使用的药物是（）。
A.麻黄、桂枝
B.金银花、连翘
C.荆芥、防风
D.紫苏、生姜
E.桂枝、葛根
参考答案：C
Allow children to voice their opinions, ____ they are different from your own. [ ]
A. until
B. even if
C. unless
D. as though
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