更多"Electrical _______ such as toasters"的相关试题:
[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]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]Mr. White was unhappy because his hair stopped growing.
[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]Christopher Peake's hair didn't look so bad because ______.
A. he was wearing a handsome tuxedo
B. he was wearing tulips on his suit
C. he was seen among flowers
D. he was sitting near flowers and in very soft light
[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]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]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]Women workers wear hats ______ their hair gets caught in the machine.
A. if
B. in case
C. unless
D. because
[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](In most) cases of epilepsy, cerebral electrical activity, also known as brain waves, (demonstrates) a (characteristically) abnormal (rhythms).
A. In most
B. demonstrates
C. characteristically
D. rhythms
[单项选择]A (red-hair boy is (needed) to play (the part of) Hamlet in (this) new play.
A. red-hair
B. needed
C. the part of
D. this
[单项选择]How much of your country's electrical supply is __________ from water power
A. deduced
B. detached
C. derived
D. declined
[单项选择]Electrical power is produced by ______.
A. dams
B. reservoirs
C. factories
D. generators
