以下说法中哪一种是正确的？ Which of the following statements is true？

A、电容单位体积内的储存的能量，正比于电场强度的平方； The energy stored per unit volume of capacitance is proportional to the square of the electric field intensity;

B、电容单位体积内的储存的能量，正比于电场强度； The energy stored per unit volume of capacitance is proportional to the strength of the electric field;

C、电容单位体积内的储存的能量，正比于电势的平方； The energy stored per unit volume of capacitance is proportional to the potential squared;

D、电容单位体积内的储存的能量，正比于电势； The energy stored per unit volume of capacitance is proportional to the potential;

A.Passengers had a lot of vegetables， but no fruit.

B.The sailors had four tins of beer a day.

C.The people on the ship often fell ill because of the lack of food.

D.The food for the passengers was more and better than that for the crew.

  Which of the following statements is true about office speak?

[A] Managers admire it but avoid it

[B] Linguists believe it to be nonsense

[C] Companies find it to be fundamental

[D] Regular people mock it but accept it

   本题为单选题，请选出正确答案，谢谢！

A．Common cold is the first warning of bronchitis.

B．Tuberculosis is believed to have developed from common cold.

C．The application of antibiotics is the only effective means in the treatment of common cold.

D．Radical surgery is never needed in the treatment of common cold.

A．Common cold is the first warning of bronchitis.

B．Tuberculosis is believed to have developed from common cold.

C．The application of antibiotics is the only effective means in the treatment of common cold.

D．Radical surgery is never needed in the treatment of common cold.

A．None of the following statements is true.

B．Silicon Valley has great deposits of silicon.

C．London and Zurich have vast amounts of arable land.

D．Western Europe has always depended on services.