按GB7588-2003《电梯制造与安装安全规范》规定，蓄能型缓冲器的设计应能在静载

They played hide and seek and _________ in the winter.[ ]

A. did snowman      

B. did snowmen        

C. made snowmen    

D. made snowman

(三) Researchers have shown that noise can adversely affect human in both physiological and psychological ways. Hearing losses in particular occupations such as ship - building and con- structi - on work are well - known. In fact, however, we all find hearing more difficult as we age. Young ears can distinguish a wide range of sounds from low to very high frequencies, while older ears lose the ability to distinguish high -pitched sounds. A comparison of people living in some industrialized and non - industrialized areas suggests that this hearing loss may not necessarily accompany old age. Furthermore, a closer inspection of other data reveals economic effects. For instance, an increased turnover in property has been observed in noisy areas near airports. Job performance can be adversely affected by loud noise, especially if accuracy and mental effort are involved. The use of outdoor areas for conversation is not possible for an estimated 5 to 10 million people who live or work in urban areas. When interference with television or speech or sleep is included, as many as 22 to 24 million people can be said to have lost part of the use of their homes and grounds because of noise. Thus noise pollution is a serious environmental concern. The indifferent attitude toward noise should be overcome; considerable efforts should be made to alert people to the grave effects that may stem from an excessively noisy environment.

It can be inferred from the passage that loud noise has greater effects on people who work______

A．in ship -yards

B．in offices

C．at airports

D．on work sites

夏季热，发热持续不退，病程迁延，心烦欲呕，咽干烦渴，舌红少苔，脉象细数无力。治疗应选用的方剂是（）

A.白虎加人参汤

B.王氏清暑益气汤

C.竹叶石膏汤

D.新加香薷饮

E.白虎汤加生脉散

电工仪表标度尺的工作部分是指（）范围，在此范围内能保证仪表的（）。

如何理解生态对策的含义？有哪些主要对策类型？