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You Can Make a Windsock( 风筒 ) Have you ever seen a windsock blowing in the wind? Well, you can make one of your own! This is a fun project that you can do with things you may have. You just need to follow a few easy steps. You will need: ●one piece of heavy colored paper ●five ribbons ●strong tape ●a string ●a pencil What to do: Step 1: Draw pictures on the paper. You can write your name on it. Do anything that will make it special to you. Step 2: Make the paper into the shape of a tube. Hold one of the shorter edges( 边缘 ) over the other. Then make them together with the tape at each end and in the middle. Step 3: Use a pencil to make a hole into both sides of the tube. The holes should be only on one end of the tube. Pull the string through both holes. Then tie the ends of the string together. Step 4: Now make five holes around the top of the other end of the tube. Put a ribbon through each of the holes. Tie a knot in the ends. Make sure the knots are bigger than the holes. Now your windsock is ready to use, but how does it work? The shape of the tube plays an important part. Wind blows through the tube and makes it fly and dance around. Hold the windsock up in the air by its string and run around. It will fly behind you. You can also hang it outside and watch it dance around on its own!
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举一反三
【多选题】红细胞成熟因子包括
A.
促红细胞生成素
B.
叶酸
C.
维生素B12
D.
内因子
【单选题】红细胞生成成熟因子包括
A.
铁和蛋白质
B.
铁和叶酸
C.
铁和维生素B12
D.
维生素B12 和叶酸
E.
蛋白质和叶酸
【单选题】红细胞成熟因子包括
A.
铁和蛋白质
B.
铁和叶酸
C.
铁和维生素B12
D.
维生素B12 和叶酸
【判断题】“四个意识”是习近平总书记对党员干部提出的要求,即党员干部要充分加强政治意识、大局意识、核心意识、看齐意识。( )
A.
正确
B.
错误
【单选题】红细胞生成因子包括
A.
铁和蛋白质
B.
铁和叶酸
C.
铁和维生素B12
D.
维生素B12 和叶酸
E.
蛋白质和叶酸
【单选题】全党同志要增强 “四个意识”,即政治意识、大局意识、核心意识和( )。
A.
思想意识
B.
创新意识
C.
看齐意识
D.
学习意识
【单选题】欢迎词的正文一般由“开头+ +结语”组成。
A.
主体
B.
正文
C.
导语
D.
称呼
【单选题】逻辑运算的结果可以用真或假来表示。对于逻辑量A,如果A为假时,其运算结果为真,否则运算结果为假。这样的逻辑运算是____运算
A.
B.
C.
D.
异或
【单选题】下列对胃壁组织细胞分泌功能的描述中,正确的是()
A.
黏液细胞-促胃液素
B.
壁细胞-盐酸和内因子
C.
CG细胞-生长抑素
D.
主细胞-碱性黏液
E.
D细胞-消化酶
【单选题】逻辑运算的结果可以用真或假来表示。对于A和B两个逻辑运算量,只有当A和B均为真时,其运算结果为真,否则运算结果为假。这样的逻辑运算是____运算
A.
B.
C.
D.
异或
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