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【单选题】
以下对DNS服务器的描述，正确的是（）。A.
DNS服务器的主配置文件为／etc／named／dns.Conf
B.
配置DNS服务器，只需配置好／etc／nameD.conf文件即可
C.
配置DNS服务器，通常需要配置／etc／nameD.conf和相应的区域文件
D.
配置DNS服务器时，正向和反向区域文件都必须配置才行
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【单选题】听力原文：W: I hear you're joining that expedition across Alaska. Did you get much funding for it? M: You must be joking! I have to pay my own airfare and contribute toward the cost of supplies. Q: What do...
A.
It'll cost him a lot of money.
B.
He isn't serious about going.
C.
Other people paid for his airfare.
D.
It isn't fair for him to go alone.
【单选题】I am sorry to hear you're ill. I hope you are now. [ ]
A.
well
B.
fine
C.
good
D.
better
【简答题】萘乙酸（NAA）是一种生长素类似物，作用与植物生长素相似．某同学决定探究“生长素类似物萘乙酸（NAA）对植物生长有何影响”．他选用了相同的番茄种子作为实验材料，配制一系列不同浓度的NAA溶液作为培养液．在培养皿底部铺3层纱布，分别用清水和不同浓度的NAA培养液润湿，然后在每个培养皿中放入相同粒数的选好的种子．在培养皿盖上标号，盖上培养皿，观察胚轴的生长情况．3天后，数据如下表所示，请依表中数据回答...
【简答题】A．I'm on top of the world. Thank you. B．I'm sorry to hear it. C．Never mind. You're welcome. D．Yes, I am.
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