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问题 单项选择题

下列渠道中，哪一个不是我国开放式基金的销售渠道( )

A．基金公司直销

B．保险公司代销

C．银行及证券公司代销

D．专业销售经纪公司代销

答案

参考答案：B

解析： 我国开放式基金的销售渠道主要包括：基金公司直销、银行及证券公司等机构代销以及新起步的专业销售经纪公司代销三个渠道。

翻译题

完成句子。

1. You ______ (本没必要告诉) her the news, for I had told her about it earlier.

2. The ground is quite wet. It ______ (一定下雨了) last night.

3. We ______ (本该买) a new lock for the front door.

4. You ______ (不可能看见) Bob at the meeting yesterday; he has been on holiday in Paris for a week.

5. — He stayed at a hotel while in New York.

    — Oh, did he? He ______ with Barbara. (也许和Barbara待在一起)

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单项选择题

We have already covered the topic of network addresses. The first （1） in a block (in class A, B, and C) defines the network address. In classes A, B, and C, if the hosted is all 1 s, the addressis called a direct broadcast address. It is used by a （2）to send a packet to all hosts in a specificnetwork. All hosts will accept a packet having this type of destination address. Note that thisaddress can be used only as a （3） address in an IP packet. Note also that this special addressalso reduces the number if available hosted for each netid in classes A, B, and C.

In classes A, B, and C, an address with all 1 s for the netid and hosted (32 bits) define a （4） address in the current network. A host that wants to send a message to every other hosts can use this address as destinationaddress in an IP packet. However, a router will block a packet having this type of address to confine thebroadcasting to the （5） network. Note that this address belongs to class E.

（1）是（）

A.datagram

B.function

C.address

D.service
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