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單項(xiàng)選擇題

當(dāng)發(fā)生手足抽搦癥時(shí)，說明患兒血鈣已經(jīng)低于1.75～1.88mmol／L（）

A.正確
B．錯(cuò)誤

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單項(xiàng)選擇題

In fact, one of the biggest virtues of virtual reality is that it allows students to learn in a safe environment, and this holds true for students with behavior. disorders. After a student has learned an appropriate behavior. or way of controlling his or her anger, the student is put in progressively more difficult virtual social situations where he or she can practice the new technique. And it is expected that future teachers will be exposed to virtual classes, complete with "difficult students" to help them master behavior. management techniques.
Virtual reality even allows us to tailor the world to meet a child"s needs. Let"s say we"re teaching a child to cross the street by paying attention to traffic signs. Educators have found that it is often difficult for the child to locate the traffic sign in a busy environment. With virtual reality, we can blow up the "walk sign" so the student knows what it looks like. Then we gradually begin shrinking the sign and adding other environmental elements. Once the student has mastered this virtually, he or she transfers the knowledge to the real world. In the end, this is the most important function of virtual reality programs for special students.

風(fēng)濕熱的初發(fā)與再發(fā)常見的致病菌是對(duì)族乙型溶血性鏈球菌（）

A.正確
B．錯(cuò)誤

答案： A.正確風(fēng)濕熱是一種與鏈球菌感染相關(guān)的自身免疫性疾病，其初發(fā)與再發(fā)常見的致病菌是A族乙型溶血性鏈球菌（Group A S...

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