我不是紧张 是兴奋

mikeandy

明天再聊，我睡啦~

遗失的紫水晶

啊啊，那大侠明天一定要帮我指点迷津啊~~~在这拜谢拉~

jaffa23

麻烦帮我看一下这个逻辑题

GWD-27-Q2:
Electronic computer chips made of tiny silicon wafers now regularly contain millions of electronic switches.  Unfortunately, electronic switches that are this small cannot withstand intense radiation.  Micro-Mechanics plans to produce a chip that, because it uses only microscopic mechanical switches, will be invulnerable to radiation damage.  The switches will, however, be slower than electronic switches and the chip will contain only 12,000 switches.
For there to be a market for Micro-Mechanics’ chip as a result of the apparent advantage described above, each of the following would have to be true EXCEPT:
A.    There will be applications in which the speed attainable by an electronic switch is not essential.
B.    Switches used on electronic chips that contain only 12,000 switches are more vulnerable to radiation damage than the switches on Micro-Mechanics’ chip will be.
C.    There will be applications for computer chips in environments where the chips may have to survive intense radiation.
D.    Some devices in which computer chips will be used will have other components that will be able to function during or after exposure to radiation.
E.    Manufacturers are able to protect electronic computer chips against exposure to intense radiation, where this protection is necessary.

答案e为何不能是D呢~~~

-- by 会员 遗失的紫水晶 (2010/5/27 20:13:42)

要有市场就是说装了这个芯片后电脑可以正常使用 可以抵抗辐射 所以不光这个芯片要抗辐射 其他部位也要抗辐射 否则电脑还是不能用 所以d是对的
e错的应该比较好理解

我是这么觉得

mikeandy

LZ出面了~哈哈

遗失的紫水晶

麻烦帮我看一下这个逻辑题

GWD-27-Q2:
Electronic computer chips made of tiny silicon wafers now regularly contain millions of electronic switches.  Unfortunately, electronic switches that are this small cannot withstand intense radiation.  Micro-Mechanics plans to produce a chip that, because it uses only microscopic mechanical switches, will be invulnerable to radiation damage.  The switches will, however, be slower than electronic switches and the chip will contain only 12,000 switches.
For there to be a market for Micro-Mechanics’ chip as a result of the apparent advantage described above, each of the following would have to be true EXCEPT:
A.    There will be applications in which the speed attainable by an electronic switch is not essential.
B.    Switches used on electronic chips that contain only 12,000 switches are more vulnerable to radiation damage than the switches on Micro-Mechanics’ chip will be.
C.    There will be applications for computer chips in environments where the chips may have to survive intense radiation.
D.    Some devices in which computer chips will be used will have other components that will be able to function during or after exposure to radiation.
E.    Manufacturers are able to protect electronic computer chips against exposure to intense radiation, where this protection is necessary.

答案e为何不能是D呢~~~

-- by 会员 遗失的紫水晶 (2010/5/27 20:13:42)

要有市场就是说装了这个芯片后电脑可以正常使用 可以抵抗辐射 所以不光这个芯片要抗辐射 其他部位也要抗辐射 否则电脑还是不能用 所以d是对的
e错的应该比较好理解

我是这么觉得

-- by 会员 jaffa23 (2010/5/27 23:59:59)

啊，明白啦！！！！！！谢谢LZ。我的逻辑啊。。。。。怎么就转不过弯呢。。。

jaffa23

=。=我也觉得是8/9.。。。。

jaffa23

错了错了   分母是3*3*3*3  分子是C 2 4 * A 3 3      ( 三个人有一个人打两份，所以C 2 4  选出两份    另外两人每人一份   再三个人全排列一下)     这样就对了

jaffa23

我觉得是翻译问题啦 逻辑只要翻译过来了就不难了   加油！

jaffa23

LZ出面了~哈哈

-- by 会员 mikeandy (2010/5/28 0:00:43)

哎 回寝室呆了两天 宿舍熄灯后只有一个人能上网 我刚才是刚排上队 呵呵

遗失的紫水晶

错了错了   分母是3*3*3*3  分子是C 2 4 * A 3 3      ( 三个人有一个人打两份，所以C 2 4  选出两份    另外两人每人一份   再三个人全排列一下)     这样就对了

-- by 会员 jaffa23 (2010/5/28 0:29:39)

恩，这样想就是4/9了，但是我那样想哪错了呢？