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【单选题】
太阳高度角是指太阳光线与()之间的夹角。
A.
倾斜面
B.
地平面法线
C.
倾斜面法线
D.
地平面
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参考答案:
举一反三
【简答题】生石灰加水后就变成了 ,这个过程就是石灰的熟化过程。
【单选题】骨绕关节的垂直轴进行的运动是
A.
屈和伸
B.
内收
C.
旋转
D.
环绕
E.
外展
【简答题】今年11月上旬的一则新闻报道引起上海市市民的广泛关注: 一名三岁的儿童将某种食品袋中的生石灰干燥剂撒入眼中导致一只眼睛失明,这个悲惨事件给她和她的家人都带来了巨大的痛苦. (1)请用化学知识分析酿成悲剧的原因:______. (2)上面的事实说明,化学物质可以造福于人类,但有时也会给人类带来危害.请你再举出生活中的一种类似的现象来说明这个道理:______. (3)生石灰(CaO)可作干燥剂的理由...
【简答题】Knowing that you are paid less than your peers has two effects on happiness. The well-known one is negative: a thinner pay packet harms self-esteem. The lesser-known one is called the ' tunnel effect'...
【判断题】银行账面资本在数量上一般大于经济资本。
A.
正确
B.
错误
【简答题】用下划线标出下面短句中应该失去爆破和不完全爆破的地方,朗读句子,并且录制音频材料。 It is better to choose a good name than great riches. What you do not want done to yourself,do not do to others. Doing little things well is a step toward doi...
【单选题】Mathew_______ already _______ Eton Town since 1998.
A.
have, lived
B.
has, lived
C.
have, live
D.
has, living
【简答题】If your riches are ______, why don’t you take them with you to the other world? B. Franklin
【简答题】Perhaps you think you could easily add to your happiness with more money. Strange as it may seem, if you’re unsatisfied, the issue is not a lack of means to meet your desires but a lack of desires—not...
【简答题】Perhaps you think you could easily add to your happiness with more money. Strange as it may seem, if you're unsatisfied, the issue is not a lack of means to meet your desires but a lack of desires—not...
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