初中化学
Authored by 麦尔丹 麦尔丹
Chemistry
6th - 8th Grade
Used 2+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
石榴是人们喜欢的水果，石榴中的铁指
分子
原子
离子
元素
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
钙的元素符号是
C
Ca
S
CO
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
地壳中含量最多的金属元素
钙
铁
铝
铜
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
海水中含量最多的元素是
H
O
Na
C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
过氧化氢又名为
白开水
活氧水
双氧水
水
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