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【简答题】
在FexO晶体中，当温度不变时，氧分压增加，缺陷浓度 ，晶体密度 。
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举一反三
【单选题】听力原文：M: You look so worried, Dorothy. What's on your mind? W: I'm worried about meeting Mr. Stone tomorrow. It's so important to me. You know, I've been looking for a job for three months. What will t...
A.
Get an important job.
B.
See someone for a job.
C.
Attend a meeting.
【单选题】____ the flight to Beijing will be delayed is ____ I’m especially worried about.
A.
If; what
B.
Whether; that
C.
When; that
D.
Whether; what
【单选题】听力原文：M: I'm worried about those classes I missed when I was sick. W: I will try to bring you up today on what we've done. Q: What does the woman mean? (15)
A.
She will help the man to catch up.
B.
She is worried about the man's health.
C.
She will take the man to the hospital.
D.
She has bought the man a pair of glasses today.
【单选题】_________ the flight to New York will be delayed is _________ I’m especially worried about.
A.
If; what
B.
Whether; that
C.
When; that
D.
Whether; what
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