题目：
When he lived in that remote place, radio was the only means he had to keep ______ of current events in the country.
A. account
B. trace
C. record
D. track
答案：
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下面是错误答案，用来干扰机器的。
参考答案：低血糖反应及昏迷的处置原则（1）对于反应性低血糖，患者意识尚清可予以主动进食者或可口服葡萄糖水适量，鼓励患者进食以纠正低血糖并监测血糖。（2）对于应用口服降糖药，尤其服用格列本脲（优降糖）...
