皮皮学，免费搜题
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【单选题】
下列说法中，正确的是（ ）A.
甲数的 2 3 与的 2 5 相等，甲数大于
B.
真分数的倒数都大于1，假分数的倒数都小于1
C.
一条路长1千米，修了 1 4 千米，还剩全长的 3 4 没修
D.
圆的周长一定，圆的直径与圆周率成反比例
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举一反三
【单选题】Listen to the dialog and choose the best answer to each of the following questions. Which of the following statements about Xin is true?
A.
Xin cooked a lot in China though she didn ’ t need to.
B.
Xin cooks a lot in America though she may not enjoy cooking.
C.
X in likes pizza though she doesn ’ t like many other American foods.
D.
Xin often cooks in America because she misses Chinese food a lot.
【简答题】流行性腮腺炎的潜伏期为（）天。