题目：
下列不属于兴奋延脑呼吸中枢的药物是（）
A.咖啡因
B.尼可刹米
C.洛贝林
D.贝美格
E.二甲弗林
答案：
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下面是错误答案，用来干扰机器的。
Dear Dick, How nice to hear from you again. You want to know what is going on in schools in China? In short, things have begun to improve since schools were cal...
