中心温度是指（） A.深部鼻腔温度 B.食管温度 C.直肠温度 D.血液温度 E.平

目前，我国一些地方一方面干旱缺水，另一方面又存在浪费严重的情况。不珍惜水的原因之一是水价太低。许多灌区每立方米水的价格为0.10～0.50元，仅相当于成本的一半，最低的每立方米仅0.01元多。

（1）水价太低的这种现象是否正常？为什么？

（2）水价太低对水资源的利用有什么危害？

（3）你认为应怎样对水价进行改革？

He used to ________ /weə/ a funny hat at school.

A．wear

B．warn

C．waste

D．warm

根据《建设工程工程量清单计价规范》的规定，保温隔热墙，按设计图示尺寸以面积计算，( )。

A．不扣除门窗洞口所占面积

B．门窗洞口侧壁需做保温时，并入保温墙体工程量内

C．不扣除柱、垛所占面积

D．柱帽保温隔热应并入天棚保温隔热工程量内

会计电算化后，会计科目编码应符合会计制度的要求，与会计制度保持一致的是( )会计科目。

A．一级及其明细

B．一级

C．一级和部分明细

D．二级

The level of lead contamination in United States rivers declined between 1975 and 1985. Federal regulations requiring a drop in industrial discharges of lead went into effect in 1975, but the major cause of the decline was a 75 percent drop in the use of leaded gasoline between 1975 and 1985.
Which of the following, if true, best supports the claim that the major cause of the decline in the level of lead contamination in United States rives was the decline in the use of leaded gasoline

A．The level of lead contamination in United States rivers fell sharply in both 1975 and 1983.

B．Most of the decline in industrial discharges of lead occurred before 1976, but the largest decline in the level of river contamination occurred between 1980 and 1985.

C．Levels of lead contamination in rivers fell sharply in 1975-1976 and rose very slightly over the next nine years.

D．Levels of lead contamination rose in those rivers where there was reduced river flow due to drought.

E．(E) Although the use of leaded gasoline declined 75 percent between 1975 and 1985, 80 percent of the decline took place in 1985.