问题
单项选择题
水痘的潜伏期为（）
A.2周左右
B.5～7天
C.3～5天
D.1～2天
E.3周左右
答案
参考答案：E
解析：主要考查水痘的潜伏期为2～3周。得过水痘痊愈后，将获得终生免疫。
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水痘的潜伏期为（）
A.2周左右
B.5～7天
C.3～5天
D.1～2天
E.3周左右
参考答案：E
解析：主要考查水痘的潜伏期为2～3周。得过水痘痊愈后，将获得终生免疫。
| 情景交际。 | |
| Sam: Hi, Joan, __1__? Joan: It was pretty great. Sam: __2__? Joan: No, I didn't. __3__. Look, here are my photos. Sam: __4__? Joan: No, there weren't any sharks, but there were really clever seals. Sam: Wow, __5__. What else did you do? Joan: Well, I had a long walk with my friends and took lots of beautiful photos.
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