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【单选题】
将一个输入数据送到多路输出指定通道上的电路是A.
数据分配器
B.
数据选择器
C.
数值比较器
D.
编码器
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举一反三
【简答题】健康的三不主义的内涵是:_____、_____、_____。
【单选题】下列关于人体健康的叙述正确的是………………………………………………( )
A.
健康人血浆的pH值一定等于7
B.
缺乏硒元素会引起食欲不振，生长迟缓，发育不良
C.
生活中适当给婴儿饮食中添加鱼肝油是为了补充维生素
D.
为了使骨骼强健可以每天大剂量的服用补钙的保健品
【简答题】response transform focus yze inferiority competitive peer adopt yze regulate compare portable represent competitive attractive 1. Those who have an _____ complex feel tha...
【判断题】I have finished my homework already. 改成否定句是I haven’t finished my homework already.
A.
正确
B.
错误
【单选题】I finished my work in time. I owe it to you. A. I owe it to you that I finished my work in time. B. I finished my work in time that I owe it to you. 哪一个句子是正确的?A or B
A.
A
B.
B
【简答题】句型转换： 1. I have already finished my homework. (否定句) I ________ finished my homework _________. 2. Les's go swimming this afternoon, _________ _________(改为反意疑问句). 3. We plant many trees every year.(改为被...
【单选题】听力原文：W: Oh hi, Michael. I finished my last exam this morning, and I finished my two term papers. I finally feel like I can see the light. M: Great. Now, how about a change? I've got two tickets for th...
A.
Preparing for the final exam.
B.
Making a trip to Los Angeles.
C.
Touring the town.
D.
Going to an exhibition.
【单选题】微量元素过多或缺乏，可导致某些地方病的发生，下列说法正确的是
A.
缺碘与地方性甲状腺肿及呆小症有关
B.
低硒与克山病和骨关节病有关
C.
铁过剩致血红蛋白沉着病
D.
先天性铜代谢异常引起Wilson病
E.
以上都对
【单选题】某医院接受一名11岁儿童患者,其身高明显低于同龄人,临床检查见骨骺端膨大,沿肋骨方向于肋骨与肋软骨交界处可见圆形隆起,从上至下如串珠样突起。这种现象可能是由以下哪种矿物质缺乏引起的( )
A.
铁
B.
磷
C.
钙
D.
氟
E.
硒
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