Which of the following elements is a d-block element? A: Copper B: Chlorine C: Aluminum D: Sodium

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;

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；

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

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

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

Add an output port block (Out block) to the simulation model, and this block can output the results to the MATLAB workspace.

插入图块的命令为（） A: Insert B: Block C: Import D: Block

Questions 11～13 are based on the following dialogue. Where is the man going to next A: Block B. B: Block G. C: Block E. D: The car park.

以下代码中能够实现显示对象的选项的是（）。 A: obj.style.display；’block’； B: obj.style.display=’block’； C: obj.display=’block’； D: obj.style.display；’none’；