单选题 [Focus on the pronunciation of "s"]
A. resolution B. resident C. restart D. resignation

【正确答案】 C
【答案解析】[解析] The letter "s" in choice C is pronounced as/s/, while "s" in the other choices is all pronounced as/z/.本题考查字母“s”在单词中的发音情况，尤其应注意其何时浊化。