问题
单项选择题 A1/A2型题
短波紫外线红斑反应的潜伏期是（）。
A.1.5～2小时
B.2～3小时
C.3～4小时
D.4～6小时
E.6小时以上
答案
参考答案：A
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短波紫外线红斑反应的潜伏期是（）。
A.1.5～2小时
B.2～3小时
C.3～4小时
D.4～6小时
E.6小时以上
参考答案：A
| 根据短文内容，用方框中所给的单词的适当形式填空，每词限用一次。 | |
people can play tricks on their ___1____. For example, you can try to make one of your friends ____2____ something that is not true. If your friend falls into your trick, he or she is an April fool. “Rita, the head teacher wants you,” said one of her classmates on April 1st. “All right,” she answered and ran to the ____3____. When she finally found, the teacher told her that he didn’t want her. When Rita came back, everyone around her laughed and ____4____ “April fool!” Rita laughed too, but felt so sorry ____5____ having been made a fool. |