单选题The temperatures are somewhat lower than the average temperature in May this year.A ratherB veryC a littleD less

听力原文：The rate of interest on savings accounts is usually a little lower than that on deposit accounts.

(5)

A．There is a higher rate of interest on deposit account.

B．There is a higher rate of interest on savings account.

C．The rate of interest on deposit accounts is always much higher than that on savings accounts.

D．The rate of interest on deposit accounts is usually much lower than that on savings accounts.

A、lower⋯that

B、below⋯those

C、under⋯that

D、lower⋯those

This forecast predicts______.

A. records will be broken

B. skies will be partly cloudy on Sunday and Monday

C. there will be no rain in the forecasted period

D. temperatures will be lower than normal for the time of year

Mean low water is the average height of ______.

A.the surface of the sea

B.high waters and low waters

C.all low waters

D.the lower of the two daily low tides

Prolonged operation of a diesel engine with a closed cooling water system, at lower than normal designed operating temperatures can ______.

A.increase power output

B.decrease lube oil viscosity

C.eliminate fuel knock

D.cause sulfuric acid formation

Content words are numerous and more frequently used than functional words on average.()

A. In

B. By

C. At

D. On

The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually______.

A.greater than the average exhaust manifold pressure

B.less than the average exhaust manifold pressure

C.greater at the turbine wheel than at the impeller

D.greater at reduced engine speed

Sweat damage in a hatch full of canned goods in cartons will occur when the ______．

A.Air temperature is higher than the temperature of the cargo

B.Air temperature is lower than the temperature of the cargo

C.Dew point is higher than the temperature of the cargo

D.Dew point is lower than the temperature of the cargo