听力原文:M: Hi, Maria.
W: Oh! Hi, Dave. Come on in. Take a seat. Would like anything to drink, coffee or tea?
M: Coffee would be fine. Eh... So how have you been?
W: Oh, not so bad. And you? M: Oh, I'm doing OK. But school has been really busy these days, and I haven't had time to relax.
W: By the way, what's your major anyway?
M: Hotel management.
W: Well, what do you want to do once you graduate?
M: Eh... I haven't decided for sure. But I think I'd like to work for a hotel or a travel agency in this area. How about you?
W: Well, when I first started college, I wanted to major in French. But I realized I. might have a hard time finding a job using a language. So I switched to computer science. With the right skills, landing a job in the computer industry shouldn't be as difficult.
M: So do you have a part-time job to support yourself through school?
W: Well, fortunately for me, I received four-year academic scholarship. That pays for all of my school expenses.
M: Wow. That's great.
W: Yeah. How about you? Are you working your way through school?
M: Yeah, I work three times a week at a restaurant near campus.
W: Oh, what do you do there?
M: I'm a cook.
W: How do you like your job?
M: It's OK. The other guys are friendly and the pay isn't bad.
What does the conversation take place?
A.In a teahouse.
B.In a classroom.
C.In Dave's dorm.
D.At Mafia's home.
第3题
水解后能生成没食子酸和糖或多元醇的是
A、可水解鞣质低聚体
B、C-苷鞣质
C、没食子鞣质
D、咖啡鞣质
E、逆没食子鞣质
第4题
水解后主要产生没食子酸和葡萄糖(或多元醇)的鞣质是
A、逆没食子鞣质
B、没食子鞣质
C、缩合鞣质
D、含有没食子酰基的缩合鞣质
E、咖啡鞣质
第7题
缩合鞣质的水解产物是
A、没食子酸鞣质和糖
B、逆没食子酸
C、逆没食子酸鞣质和糖
D、糖
E、以上都不是
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