皮皮学，免费搜题
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【单选题】
题目条件同题1,要求2: 计算甲种投资组合的 β系数A.
1.5
B.
1.15
C.
1.2
D.
1.25
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皮皮学刷刷变学霸
举一反三
【简答题】A semiconductor is a solid material that has electrical conductivity between that of a conductor and that of an insulator. It can vary over that wide range either permanently or dynamically. Semicondu...
【单选题】In which of the following Internet business models does a merchant create an online digital environment that enables people with like interests to share information or buy and sell goods?
A.
Market creator
B.
Service provider
C.
Transaction broker
D.
Community provider
【单选题】It is uncertain whether the medicine will work on this cold, _____? [ ]
A.
is it
B.
isn't it
C.
will it
D.
won't it
【多选题】下面有关德国人的风俗习惯描述正确的有( )。
A.
忌讳问个人私事。
B.
忌讳数字“13”和星期五
C.
忌讳在公共场合窃窃私语
D.
讨厌菊花、蔷薇、蝙蝠图案
E.
不喜欢客人自行参观办公室或家,更不喜欢客人随意翻动桌上的书记或室内的物品
【简答题】Newspapers are a dying medium. Affirmative: The ascent of digital publishers will take over print media. Negative: As long as newspapers continue to create great content, hire quality journalists, and...
【多选题】德国的礼俗禁忌主要有
A.
德国人的规则和法律意识都很强，打交道干脆、直接。
B.
时间观念强，凡事喜欢提前预约。
C.
讲究礼仪，到别人家做客一般送礼物。鲜花、葡萄酒是常见的；送礼忌送菊花、玫瑰和蔷薇（用于悼亡），礼物一般当面打开。
D.
德国人不喜欢红色，红黑相间色以及褐色，尤其忌墨绿色（纳粹军服）。忌讳13和星期五。
【简答题】To create a digital image, we need to convert the continuous sensed data into digital form. This involves two processes: _______ and ________
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