举一反三
- Name a few ways to output (print) a block of HTML code in PHP? （ Yahoo ）
- The Switch block in the Signal Routing block library can be used to implement a piecewise function.
- manual block A: block controlled manually by a person known as a block operator. B: a fixed signal that lets engineers know if a train can enter a block.
- Which of the following commands can generate the block drawing file ( ) A: Save B: Explode C: Block D: Wblock
- 创建内部块的命令是（）；创建外部块的命令是（）。 A: Block;Insert; B: WBlock;Block; C: Block;Block; D: Block；Wblock;
内容
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创建内部块的命令是（ ）；创建外部块的命令是（ ） A: Block；Wblock; B: Wblock;Block； C: Block; Block; D: Block; Insert；
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分组密码工作模式主要有EBC（Electronic Code Book，电子密码本）、CBC（Cipher Block Chaining，密文链接）、CFB（Cipher Block FeedBack，密文反馈）、OFB（Output FeedBack，输出反馈）与CTR（Counter，计数器）等模式
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A snatch block is a（）. A: block used only with manila rope B: chock roller C: hinged block D: strong block used for short，sharp pull
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What are forms of business letters? A: Full Block Form B: Modified Block Form with Indented Style C: Modified Block Form D: Simplied Block Form
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Block A has mass 1.00 kg and block B has mass 3.00 kg. The blocks collide and stick together on a level, frictionless surface.After the collision, the kinetic energy (KE) of block A is A: 1/9 the KE of block B B: 1/3 the KE of block B C: 3 times the KE of block B D: 9 times the KE of block B E: the same as the KE of block B