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【单选题】
在正投影中，投射线与投影面（ ）A.
不垂直且相交
B.
垂直
C.
平行
D.
有可能平行
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【简答题】阅读理解。 A new fast food store has just opened near Carl's school. Carl and his classmates often go there after school. The store sells lots of food and the prices are reasonable , so many students enjoy...
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【简答题】an often have apple I in morning the
【简答题】阅读理解。 My name is Sally. I'm from England. I like eating and I often eat well. Every morning, I like coffee, French fries, an egg and an apple for breakfast. I have lunch at school, I have a quick lunc...
【单选题】For breakfast, I often have _____ egg and _____ apple. [ ]
A.
an; an
B.
a; a
C.
the; the
D.
an; the
【简答题】仰卧起坐动作躯干屈时,躯干骨骼肌是在______条件下工作的。
【单选题】感觉和知觉的关系是怎么样的,下面说法错误的是
A.
感觉是知觉的基础，知觉以感觉为前提。
B.
知觉中除了包含感觉之外，还涉及到记忆、思维活动等。
C.
知觉是人脑对客观事物个别属性的反应，通过知觉可获得事物个别属性的知识。
D.
知觉不是感觉的简单相加，需借助自己的经验和 的帮助来认识外界事物。
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