多项选择题

在选择电力变压器时，下列哪些电压等级的变压器，应按超高压变压器油标准选用？（）

A.220kV
B.330kV
C.500kV
D.750kV

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CARIFF, Wales. Singers and musicians from across the globe gathered in Wales to celebratethe tradition (传统) of storytelling.'It might seem strange that people still want to listen to instead of watching television, but this is an unusual art form. whose time has come again,' said David Amibrose, director of Beyond the Border, an international storytelling festival (节) in Wales.'Some of the tales, like those of the Inuit from Canada, are thousands of years olD.So our storytellers have come from distant lands to connect us with the distance of time,' he said early this month.Two Inuit women, both in their mid-60s, are among file few remaining who can do Kntadjait, or throat singing, which has few words and much sounD.Their art is governed by the cold of their surroundings, forcing them to say little but listen attentively.Amibrose started the festival in 1993, after several years of working with those reviving (coming back into use or existence)storytelling in Wales.'It came out of a group of people who wanted to reconnect with traditions and as all the Welsh are storytellers, it was in good hands here,' Amibrose saiD.Ambrose believes that the art of storytelling ______.A.will be more popular than TVB.will be popular againC.started in WalesD.are in the hands of some old people

A.B.
C.
D.
E.
F.
G.
Ambrose
H.
A.will
I.will
J.started
K.are

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In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.In security, an(71)is a form. of possible loss or harm in a computing system; examples of exposures are unauthorized disclosure of data, modification of data, or(72)of legitimate access to computing. A vulnerability is a weakness in the security system that might be exploited to cause loss or harm. A human who exploits a vulnerability perpetrates an attack on the system. Threats to computing systems are circumstances that have the potential to cause loss or harm; human attacks are examples of threats, as are natural disasters, inadvertent human errors, and internal hardware or software(73). Finally, a control is a protective measure an action, a device, a procedure, or a technique - that reduces a vulnerability. The major(74)of computing systems are hardware, software, and datA.There are four kinds of threats to the security of a computing system: interruption, interception, modification, and(75). The four threats all exploit vulnerabilities of the assets in computing systems.A.betrayalB.uncoverC.emergeD.exposure

A.B.
A.betrayal
B.uncover
C.emerge
D.exposure

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