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【单选题】
我国已知最古老岩石的放射性同位素年龄是A.
4.3Ga
B.
3.8Ga
C.
3.3Ga
D.
2.8Ga
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举一反三
【简答题】85%、115%、99.0%、101.0%各有几位有效数字?
【简答题】Fill in blanks with the words you learn from this unit in the appropriate form according to context. 1. His doctor tried to c_____ him that he wasn't really ill and that it was all in the mind. 2. He'...
【单选题】( )全党全国各族人民团结奋斗的共同思想基础,是中国发展进步、实现中华民族伟大复兴的强大思想武器。
A.
依法治国
B.
人民当家做主
C.
维护宪法法律权威
D.
中国特色社会主义理论体系
【单选题】Nothing but two ancient Chinese coins ＿＿＿＿ after they took out the jar.
A.
did they find in it
B.
they found in it
C.
in it did they find
D.
in it found they
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