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【简答题】
已知向量 与 为共线向量,且 . (1)求 的值; (2)求 的值.
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【单选题】According to Dominique Strauss-Kahn, the IMF aims at
A.
providing Greece with funds.
B.
offering Greece natural resources.
C.
demonizing the Greek people.
D.
helping Greece with debt crisis.
【多选题】交流接触器线圈通电时,所有的 [填空(1)] _触点先行动作,然后所有的 [填空(2)] 触点跟着动作。线圈断电时,所有的 [填空(3)] 触点首先动作,接着所有的 [填空(4)] 触点跟着动作。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
动断
B.
动合
C.
动合
D.
动断
E.
动断
【单选题】AutoCAD 临时保存文件的默认扩展名为 *.sav
A.
*.sav
B.
*.bak
C.
*.dwl
D.
*.ac$
【判断题】Now Dominique is saving money to buy a house so that she refused to purchase anything expensive.
A.
正确
B.
错误
【简答题】交流接触器线圈通电时,所有的[填空(1)]_触点先行动作,然后所有的[填空(2)]触点跟着动作。线圈断电时,所有的 [填空(3)]触点首先动作,接着所有的[填空(4)]触点跟着动作。
【判断题】渡槽是专门建筑物。
A.
正确
B.
错误
【单选题】一自耦变压器如图所示,环形铁芯上只绕有一个线圈,将其接在a、b间作为原线圈。通过滑动触头取该线圈的一部分,接在c、d间作为副线圈,在cd间接定值电阻R.在a、b间输入电压为U 1 的交变电流时,c、d间的输出电压为U 2 .在将滑动触头从M点顺时针旋转到N点的过程中( )
A.
, 降低
B.
, 升高
C.
变压器输入功率增大
D.
变压器输入功率减小
【单选题】听力原文:W: I’ve noticed that you get letters from the UK now and then. Would you mind saving the stamps for me? My mum collects them. M: My classmates already asked for them. Q: What does the man imply? ...
A.
His classmates know the woman's mom.
B.
His classmates send him letters.
C.
He already promised to introduce his classmates to the woman's mom.
D.
He already promised to save stamps for his classmates.
【多选题】在进行企业的竞争环境分析时,通常采用的“五力模型”中除了买方(供应商)、卖方(销售商)的议价能力外,还包括()
A.
现有竞争者的力量
B.
政府的力量
C.
替代品的力量
D.
潜在竞争者的力量
E.
互补产品的力量
【单选题】The passage cites examples of Sakip Sabanci's and Dominique de Menil museums to ______.
A.
prove how private collectors enrich arts collection and flatten geographical hierarchies
B.
show the symbolism of the private museums and the aesthetic transformation of a nation
C.
explain the fact that the rush of private museums is destabilising the art landscape
D.
exemplify the nowadays crisis of shrinking art resources and growing demand
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