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【单选题】
( )是少量的碳和其他合金元素固溶于α-Fe中的固溶体。A.
奥氏体
B.
马氏体
C.
珠光体
D.
铁素体
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【简答题】阅读理解 Mr. White works in an office. One day, when he had lunch, a friend came to visit him . They were very happy and talked a lot. Then they looked at the clock on the wall. It was time to go to offic...
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A.
How are you.
B.
Long time no see.
C.
Hello.
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A.
Nice to meet you
B.
Glad to see you
C.
Nice meeting you
D.
It's glad meeting you.
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A.
invite
B.
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C.
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D.
invited
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A.
a 800,000-words
B.
an 800,000-words
C.
a 800,000-word
D.
an 800,000-word
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【简答题】Mr. White works in an office. One day, when he had lunch, a friend came to visit him . They were very happy and talked a lot. Then they looked at the clock on the wall. It was time to go to office. He...
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