[单项选择]Electrical appliance such as toasters or hair dryers are designed to ______ the ability of an electric current to heat a wire.
A. take the risk of
B. take advantage of
C. take responsibility
D. make sense of

[单项选择]Electrical appliance such as toasters or hair dryers are designed to ______ the ability of an electric current to heat a wire.
A. take the risk of
B. take advantage of
C. take responsibility
D. make sense of

[单项选择]For your safety, the electrical appliance can only operate when it has been correctly mounted on a dry and cool base.
A. 你只有在干燥通风的地方操作这一台电子仪器才安稳。
B. 只有在干燥通风的场所才能使电子仪器持续运转。
C. 为了安全起见，本电器设备只有安装在通风阴凉处才能确保其正常运行。
D. 为了安全起见，本电器装置只有正确安装在干燥阴凉的基座上才能运行。

[单项选择]Electrical _______ such as toasters or hair dryers are designed to take advantage of the ability of an electric current to heat a fire.
A. devices
B. appliances
C. apparatus
D. instruments

[单项选择]George's Appliance Center sells big screen televisions. On a representative model, when the price was reduced from $ 2450 to $ 2275, monthly demand increased from 175 to 211 units. What is the price elasticity of demand（）
A. -2.14.
B. -1.69.
C. -2.53.

[多项选择]You are configuring the DX appliance for the first time using the console. Which two configurationvalues can be set using the first time configuration screen?（） (Choose two.)
A. the user role
B. the ether0 IP address
C. the default route for this DX appliance
D. the address of a network TFTP server

[单项选择]Only a small and select group of electrical engineers was shown the designs for the microprocessors in order to ensure ______.
A. confident
B. confidential
C. confidentially
D. confidentiality

[单项选择]By giving him electrical shock treatment, the doctor has______ a partial cure of his short sightedness.
A. affected
B. effected
C. afforded
D. rendered

[单项选择]IBM ProtecTIER Appliance Edition v2.5 software loaded on the IBM TS7650 Appliance has beenenhanced to support the OpenStorage (OST) API with which of the following applications?（）
A. EMC Networker 
B. Symantec NetBackup 
C. CommVault Simpana 9 
D. eVault Backup Software

[单项选择]Compared to common electrical conductors, superconductors
A. have little or no electrical resistance.
B. can be used for a long time.
C. are not energy-efficient.
D. can be made easily.

[单项选择]Electrical impulses affect _______.
A. long-term memory
B. short-term memory
C. structural changes
D. brain cells

[单项选择]Electrical energy may be divided into two components ______ as positive and negative.
A. distinguished
B. specified
C. separated
D. indicated

[单项选择]Electrical power is produced by ______.
A. dams
B. reservoirs
C. factories
D. generators

[单项选择]

How hard is it to get beautiful hair
Beautiful hair cannot be taken for granted. Environmental factors, chemical treatments and the mechanical damage done by combs, brushes and blow dryers all have a bad effect on the hair in the long run. The hair parts into thin pieces, loses its brightness, becomes hard and easily broken and develops split ends.
Our heated Scissors, a new approach to pretty hair, is a modem technological device available most cities now.
No hairdresser needs to be told how crucial the quality of a pair of scissors is. But all the same few have imagined a cutting tool as sharp as razors. What’s more, the heating element is located in the interior of the edges, with the best possible heat transference to the cutting edges. Heated. cutting edges with individually adjustable temperatures seal the cuts instantly. The cut end of the hair is closed up smoothly and neatly.
Right from the very first cut, the hair takes on a
A. 虽然许多自然界的规律尚未发现，但他们确实存在于自然界中。
B. 存在于大自然中的许多法律还没有被科学界发明出来。
C. 许多自然界的规律实际上存在于自然界中，尽管不能被发现o
D. 尽管很多自然界的规律没有被找出，但是这些规律实际上存在于自然界中。