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【单选题】
听力原文：M: I'd like to sign up for the environmental council. I hear it's a great way to get connected in the community. W: It is, but you do put in a lot of hours, so I hope you can provide a bit of free room in your schedule. Q: What does the woman imply? (16)A.
Volunteering is fun.
B.
Volunteering is very difficult.
C.
Volunteering requires a time commitment.
D.
Volunteering requires you to raise money sometimes.
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【简答题】如果以组合的投资目标为标准对证券组合进行分类，那么，常见的证券组合类型包括（ ）。
【单选题】下列语句()能够查询所有英语类课程的信息。
A.
SELECT * FROM Course WHERE cname LIKE ‘%英语’
B.
SELECT * FROM Course WHERE cname LIKE ‘%英语%’
C.
SELECT * FROM Course WHERE cname LIKE ‘_英语_’
D.
SELECT * FROM Course WHERE cname LIKE ‘*英语*’