According to China Youth Daily, more than 20% of last years college graduates quit their j

called

A．scientific language.

B．idiolect.

C．colloquial language.

D．formal language.

in relation to specific periods of time, as opposed to their simple location in the present, past, or future.

A．Tense

B．Time

C．Mood

D．Aspect

______was the founder of the Plantagenet Dynasty and ruled England for 35 years.

A．Henry I

B．King Stephen

C．Henry II

D．Count of Anjou

Why can Li-Fi related devices be used on a plane?

A．For they are not as heavy as the traditional ones.

B．For they don"t interfere with the equipment.

C．For they are cheaper.

D．For they are a new technology.

Why does Dr Povey say the fact that light waves can not penetrate walls is a bonus?

A．Because more energy can be concentrated.

B．Because it can save a lot of money.

C．Because it doesn"t pose risks to health.

D．Because secrets can be better protected.

Which of the following is NOT true with LEDs?

A．They"re conductor devices.

B．They"re replacing incandescent light.

C．They"re the future of light.

D．They"re more efficient than fluorescent tubes.

Which of the following is NOT true with Li-Fi?

A．Products involving it already exist.

B．It may become an alternative to Wi-Fi.

C．It can exacerbate the problem of capacity.

D．The speed of it already exceeds some of the Wi-Fi routers.

Which of the following does Li-Fi most probably stand for?

A．Lightless Fidelity.

B．Light Fidelity.

C．LED Fidelity.

D．Light Five.

ident who promised to get America out of me depression.

A．Theodore Roosevelt

B．Franklin D. Roosevelt

C．Woodrow Wilson

D．Herbert C. Hoover

A．Football

B．Baseball

C．Basketball

D．Soccer