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>> 国家开放大学 / 学前儿童科学教育
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佳题速递：
document.write($wapper.api.getDisplayFormat("(A)(B)(C)(D)[参考答案：B] 分值：2"));(A)(B)(C)(D)[参考答案：B] 分值：2showAnswer("lemonysoft_item_cfkb9zsl6i_48","B","3");得分： 分系统自动批改于2020年12月27日 0点45分 (A)(B)(C)(D)[参考答案：B] 分值：2高等数学 题型描述: 阅读理解Jacks is the name of a game that is quite popular with children. To play jacks, you will need a small rubber ball and ten small metal objects called jacks.The rules for this game are not very difficult. To begin, you put the ten jacks on the floor or ground in front of you. Throw the ball up (but not too high), pick up one jack, and then catch the ball. Keep the jack in your hand and then continue to pick up the other jacks one at a time. You lose your turn if you do not catch the ball, you do not pick up a jack, or you drｏp any jacks from your hand.When you finish all ten jacks, you now try to do the same thing again but with two jacks at one time. This is more difficult of course. You lose your turn if you make any of the other three mistakes or if you do not pick up exactly two jacks each time.1、 To play the game, you will need a rubber band and ten small iron objects. A. F B. T 2、 The rules for playing jacks are quite difficult. A. Y B. F 3、 You have to pick up two jacks each time after you finish the first ten jacks successfully. A. F B. T 4、 Many children like the game very much. A. F B. T 5、 The rules for the game will become more practical after you pick up the first ten jacks. A. F B. T统考英语B 如何才能确保汽车运输的安全、可靠、环保，更好更快地服务于社会生产（ ） 汽车运用基础 Electronic payment is a general concept describing a new way of handling payment among parties that are linked with business transactions.正确错误电子商务英语 新文化运动时期，工人阶级登上政治舞台正确错误中国近现代史纲要 采用系统的原因是( )(A) 2PSK传输速率太低 (B) 2PSK误码率高 (C) 2PSK容易发生“倒”现象 (D) 2PSK功率消耗大通信原理概论