库仑法测全硫时所用的变色硅胶的作用是（）。-我要搜题网

[单选题]滨海相的沉积环境一般水深为( )m，沉积成分中黏土占80%。
A.0-20
B.20-200
C.200-2000
D.大于2000

[判断题] 变电站自动化装置主要由电子设备构成，但同时又引入各类交直流信号源，因此它具有以下几种接地方式：信号接地、功率接地、保护接地和防静电接地等。（）
A.正确
B.错误

[多选题]遇到货车计费( )等难于即时解决的问题应遵循通行优先原则，采取先通行后处理的方式( )，避免因货车计费问题导致车辆在( )长时间滞留而影响收费站( )
A.异常
B.畅通
C.收费车道
D.妥善处理

[不定项选择题]共用题干 Man of Few Words
Everyone chases success,but not all of us want to be famous.
South African writer John Maxwell Coetzee is______(51)for keeping to himself.When the 63-year-old man was named the 2003 Nobel Prize winner for literature,reporters were warned that they would find him"particularly difficult to______（52)".
Coetzee lives in Australia but spends part of the year teaching at the University of Chicago.He seemed ______(53)by the news that he won the US $1.3 million prize.
"It came as a complete surprise.I wasn't even aware they were due to make the announcement,"he said.His_______(54)of privacy led to doubts as to whether Coetzee will attend prize-giving in Stockholm, Sweden,on December 10.But despite being described as_______(55)to track down,the critics agree that his writing is easy to get to know.
Born in Cape Town,South Africa,to an English-speaking family,Coetzee______(56)his break- through in 1980 with the novel"Waiting for the Barbarians".He_______(57)his place among the wor1d's leading writers with two Booker prize victories,Britain's highest honour for novels.He first _______(58)in 1983 for the Life and Times of Michael K and his second title came in 1999 for Disgrace.
A major theme in his work is South Africa's former apartheid system,which divided whites from blacks. _______(59)with the problems of violence,crime and racial division that still exist in the country,his books have enabled ordinary people to understand apartheid_______(60)within."I have always been more interested in the past than the future,"he said in a rare interview.
"The past_______(61)its shadow over the present.I hope I have made one or two people think _______(62)about whether they want to forget the past completely."In fact,this purity in his writing seems to be______(63)in his personal life.Coetzee is a vegetarian,a cyclist rather than a motorist and he doesn't drink alcohol.But what he has______(64)to literature,culture and the people of South Africa is far greater than the things he has given up."In looking at weakness and failure in life,"the Noble prize judging panel said,"Coetzee's work_______(65)the divine spark in man." 53._________
A.influenced
B.affected
C.moved
D.shocked

[单项选择]库仑法测全硫时所用的变色硅胶的作用是（）。A. 浓缩B. 化合C. 催化D. 干燥

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[单项选择]库仑法测全硫时所用的变色硅胶的作用是（）。
A. 浓缩
B. 化合
C. 催化
D. 干燥