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【多选题】
下列关于多播叙述正确的是A.
多播是给加入了该多播组的主机发送数据
B.
多播IP地址范围是：224.0.0.1-239.255.255.254
C.
多播的MAC地址是半固定型地址，固定部分是01:00:5e
D.
加入多播组的程序相当于一个UDP服务端程序，加入多播组IP，开启端口才能接收数据
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【单选题】关于报表功能叙述正确的是( )。
A.
可以对数据库中的数据进行输入、分组、汇总和打印输出
B.
可以对数据库中的数据进行输入、计算、汇总和打印输出
C.
可以对数据库中的数据进行输入、分组、计算和打印输出
D.
可以对数据库中的数据进行分组、计算、汇总和打印输出
【单选题】—What could I get my father for Father’s Day? — _____getting him a tie?
A.
Why not
B.
How about
C.
Why don't’ you
D.
Why about
【单选题】听力原文：M: It's such a beautiful day. Why not sit out in the backyard for a while and enjoy it? W: I'd love to. But there's a lot of laundry to do. What will the woman probably do?
A.
Do her homework,
B.
Clean the backyard.
C.
Wash clothes.
D.
Enjoy the beautiful day.
【单选题】听力原文：W: It was such a heavy fog day yesterday and today it's such a fine day. Why don't we climb the mountain? M: Oh, I would love to, Susan, but I have been sick for a few days and all that exercise ...
A.
He wouldn't go because he didn't feel well.
B.
He wouldn't go because he didn't like Susan.
C.
He would go because that exercise might do him good.
D.
He would go though he was sick.
【单选题】听力原文：W: It was such a heavy fog day yesterday and today it's such a fine day. Why don't we climb the mountain? M: Oh, I would love to, Susan, but I have been sick for a few days and all that exercise ...
A.
He wouldn't go because he didn't feel well.
B.
He wouldn't go because he didn't like Susan.
C.
He would go because that exercise might do him good.
D.
He would go though he was sick.
【单选题】——Why, this is nothing but common vegetable soup! ——, madam. It’s our soup of the day.
A.
Let me see
B.
So it is
C.
Don’t mention it
D.
Neither do I
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