如图是用显微镜观察到的人血涂片示意图，下列说法不正确的是（    ）

北京冬奥会会徽以中国书法──“冬”字为主体，将抽象的滑道、冰雪运动形态与书法结合，人书一体，天人合一；冬字下方两点融为2022，生动自然。北京冬奥会会徽（    ）

盛夏来临，人们又为“怎样才能晒不黑”而犯愁，资料表明：将皮肤晒黑的罪魁祸首是太阳光中的长波紫外线．“好奇实验室”为此检测了若干衣服的防晒效果．

检测方法：先用光纤探头和计算机测算出阳光中长波紫外线的强度；再把衣服挡在光纤探头上，测算出透射导光纤探头上的长波紫外线强度．利用前后两次测得的长波紫外线的强度计算出长波紫外线的透过率．实验数据如表所示：

（1）该实验是通过比较____ 来分析衣服的防晒效果．
（2）比较实验1、2或3、4得到的结论是____ 。
（3）根据测量结果，请向你的家人提出一条夏季户外活动时着装的建议____ 。

    Schools of Nangtong, Jiangsu Province start the morning classes an hour later than before. That's, they begin the first class at about 8:30 a.m. This helps students feel less tired. The students are happy about the change.
    Liu Ming said,“I'm glad that we don't have to get up so early.”
    Wu Hongli feels the same. She said that would be good for her health. “I used to get up at 6:30 a.m. I had to drink coffee every night, or I would feel too sleepy to finish my homework, ” said Wu.
    Many teachers agree that the change helps students learn better. “Students used to doze（打瞌睡） in the first two classes in the morning,” said Huang Shan, an English teacher. “But now they are full of energy in class and learn much better than before.”
    However, some parents are worried that more sleep means less learning. There used to be five classes in the morning. Now there are only four.
In fact, every coin has two sides. So does the change in the school timetable.
根据短文内容，判断下列句子正误，正确的涂“A”，错误的涂“B”。
____ Schools of Nantong used to begin the first class at about 7：30a.m.
____ Some students and parents feel worried about the change in the school timetable.
____ Wu Hongli enjoys drinking coffee at night.
____ The English teacher thinks the new timetable does good to the students’ study.
____ “Every coin has two sides” means “凡事皆有利弊” in Chinese.