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【判断题】
翼龙和龙都不属于“恐龙”的范畴A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】碳钢马氏体的组织形态主要有 状和 状,其中 状马氏体强韧性较好。
【简答题】钢中马氏体的组织形态主要有( )马氏体和( )马氏体两种。
【简答题】碳钢马氏体的组织形态主要有 、 ,其中 强韧性较好。
【单选题】The energy sent out by the exploding star is______.
A.
100 times the energy sent out by the Sun in a year.
B.
100 million times the energy sent out by the Sun in a year.
C.
100 million times the energy sent out by the Sun in a day.
D.
100 billion times the energy sent out by the Sun in a day.
【简答题】甲火车 14 小时行驶 1750 千米,乙火车 10 小时行驶 1350 千米,哪列火车快,快多少?
【单选题】Why couldn't Tom and Judy find out who sent them the tickets?
A.
Their friends wanted to keep it a secret.
B.
The letter with the tickets was not signed.
C.
There was no letter with the tickets.
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