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【判断题】
任一非零向量都能构成一个正交向量组。A.
正确
B.
错误
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【单选题】听力原文：M: What was it like growing up in New York% Bronx District? Was it safe? W: To me it was, it was all I knew. My mom would send me to the shop and I'd go and buy things when I was about 8 years ol...
A.
The woman did not feel any danger growing up in the Bronx.
B.
The man thinks it was quite safe living in the Bronx district.
C.
The woman started working at an early age to support her family.
D.
The man doesn't think it safe to send an 8-year-old to buy things.
【单选题】听力原文：M: What was the weather like during your vacation? W: Not bad, but it would have been better if it had been a little bit cooler. Q: What was the weather like during the woman's vacation? (18)
A.
The weather was a little bit cold.
B.
The weather was a little bit warm.
C.
The weather was favorable.
D.
The weather was disappointing.
【单选题】听力原文：M: What was the weather like during your holidays? W: Not bad, but it would be better if it had been a little bit cooler. Q: What was the weather like during the woman's holidays? (14)
A.
The weather was better.
B.
The weather was a little bit warmer.
C.
The weather was a little bit colder.
D.
The weather was cooler than expected.
【单选题】听力原文：M: What was Professor Calhourn saying about the lecture series on alternative forms of energy when I walked in late? I had trouble with my car again. W: The first lecture's tonight. All second an...
A.
Admission forms.
B.
Solar energy.
C.
Auto maintenance.
D.
Course requirements for engineers.
【单选题】听力原文：M: What was the weather like during your trip to Shanghai? W: Not bad, but it would have been better if it had been a little bit cooler. Q: What was the weather like during the woman's holiday? (...
A.
The weather was a little bit hot.
B.
The weather was a little bit cold.
C.
The weather was cooler than expected.
D.
The weather was bad.
【单选题】听力原文：M: What was it like growing up in New York's Bronx district? was it safe? W: To me it was. It was all I knew. My mom would send me to the shop and I'd go and buy things when I was about 8 years o...
A.
The woman didn't feel any danger growing up in the Bronx.
B.
The man thinks it was quite safe living in the Bronx district.
C.
The woman started working at an early age to support her family.
D.
The man doesn't think it safe to send an 8-year-old to buy things.
【单选题】听力原文：What was the movie about? (A) It's about 6 P.M. (B) He moved here last August. (C) It was a western film. (29)
A.
B.
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