(2013·陕西高考)Let those in need ________ th

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问题:

(2013·陕西高考)Let those in need ________ that we will go all out to help them.

A.to understand

B.understand

C.understanding

D.understood

考点:现在分词的被动式现在分词不定式的被动式过去分词
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使用临时电源的客户不得向外转供电,但可以转让给其他客户。

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下列词语中,没有错别字的一组是( )

A.禀赋 胁从 披沙捡金 胜不骄,败不馁

B.谐谑 强弩 甚嚣尘上 黄钟毁弃,瓦斧雷鸣

C.潸然 樊篱 歇斯底里 合抱之木,生于毫末

D.小憩 震慑 莫衷一事 慌慌不可终日

题型:选择题

真空中两个静止点电荷相距10cm,它们之间相互作用力大小为9×10-4 N。当它们合在一起时,成为一个带电量为3×10-8 C的点电荷。问原来两电荷的带电量各为多少?

某同学求解如下:

根据电荷守恒定律: ①

根据库仑定律:

代入①式得:

解得

根号中的数值小于0,经检查,运算无误。试指出求解过程中的问题并给出正确的解答。

题型:选择题

TCP/IP (71) layer protocols provide services to the application (72) running on a computer. The application layer does not define the application itself, but rather it defines (73) that applications need — like the ability to transfer a file in the case of HTTE In short, the application layer provides an (74) between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP (75) layer consists of two main protocol options — the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).

A. application B. sessionC. physical D. transport

题型:选择题

简述客户信用的内容。

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