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【简答题】
根据下列选项，回答 51～52 题： 第 51 题 SARS（ ）
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皮皮学刷刷变学霸
举一反三
【单选题】— Where's Susan, Mike? — She _____ in the kitchen. [ ]
A.
cooks
B.
cooked
C.
is cooking
D.
has cooked
【判断题】A Chinese hostess, complimented for her cooking skills, is likely to say, "Oh, I'm so glad that you liked it. I cooked it especially for you."
A.
正确
B.
错误
【简答题】According to researchers, what factor or factors affect cognitive aging?