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【单选题】
下列关于数据库设计的叙述中,错误的是:A.
设计将有联系的实体设计表
B.
设计时应该避免在表之间出现重复的字段
C.
使用外部关键字来保证关联表之间的联系
D.
表中的字段必须是原始数据和基本数据元素
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【单选题】It is over _________ from Huaibei to Hefei.
A.
four hour’s drive
B.
four hours’ drives
C.
four hours’ drive
D.
four hour’s drives
【单选题】听力原文：W: I have to go to the other side of the town, but it's the rush hour now. M: Driving is not the ideal way. I always take the subway at this time of the day. Q: According to the man, what is the ...
A.
Driving a car.
B.
Taking a taxi.
C.
Taking a train.
D.
Going by subway.
【简答题】以下食物中含锌量最高的是
【简答题】外资股是指股份公司向外国投资者发行的股票，不包括向我国、、地区发行的股票。（ ） A．正确 B．错误
【单选题】听力原文：W: I have to go to the other side of the town, but it's the rush hour now. M: Driving is not the ideal way. I always take the subway at this time of the day. Q: According to the man, what is the ...
A.
Driving a car.
B.
Taking a taxi.
C.
Taking a train.
D.
Going by subway.
【单选题】It's better to avoid ______ downtown during the rush hour.
A.
to drive
B.
driving
C.
having driven
D.
to be driving
【单选题】听力原文：W: I have to go to the other side of the town, but it's the rush hour now. M: Driving is not the ideal way. I always take the subway at this time of the day. Q: According to the man, what is the ...
A.
Driving a car.
B.
Taking a taxi.
C.
Going by train.
D.
Taking the subway.
【简答题】外资股是指股份公司向外国投资者发行的股票，不包括向我国、、地区发行的股票。
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