【判断题】【消耗次数：1】
In addition to a large collection of scientific works in Chinese, our library contains many scientific books in foreign languages.
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
Hongkong is a famous shopping paradise. There are many jewelry shops and antique shops. Many things made in Asia and Europe can also be found there. ( )Chinese tea and books in different languages.
①
In addition to
②
Except for
③
Otherwise
④
Except
【单选题】
We should make a clear ____ between the two scientific terms for the purpose of our discussion.
①
separation
②
discrimination
③
deviation
④
distinction
【单选题】
The linguists’ main interest had been to____ and describe
languages.
①
analyze
②
express
③
command
④
comment
【单选题】
The scientific quest is grounded in reason and ____ inference from known facts.
①
logic
②
practical
③
magical
④
logical
【单选题】
____ is announced in the papers, our country has
launched a large scale movement against smuggling and fraudulent activities in foreign currency exchange deals.
①
What
②
As
③
Which
④
That
【单选题】
_____is announced in the papers, our country has launched a large scale movement against smuggling and fraudulent activities in foreign currency exchange deals.
①
What
②
As
③
Which
④
That
【单选题】
It is often more difficult to find trained men than ____ for scientific research.
①
getting financial support
②
to getting financial support
③
to get financial support
④
in getting financial support
【单选题】
Kingsley took a lot of ______________ with her while traveling because she was doing scientific research on fish.
①
furniture
②
equipment
③
information
④
education
【单选题】
19.Our school library is ________ closed for repairs.
①
shortly
②
quickly
③
temporarily
④
rapidly
【单选题】
Many people prefer large cars, ___ large cars are safer than small ones.
①
think
②
to think
③
having thought
④
thinking
随机题目
【单选题】
反相键合相色谱分离一化合物，若以乙腈-0.4%乙酸为流动相，减小乙腈的比例，则该化合物的容量因子K值和保留时间tR
①
K增加，tR减小
②
K减小，tR减小
③
K增加，tR增加
④
K减小，tR增加
【单选题】
薄层色谱在展开过程中极性较弱和沸点较低的溶剂，在薄层板边缘容易引起边缘效应，消除办法为
①
展开前应在展开缸中预饱和一段时间
②
展开过程中展开槽的盖子是打开的
③
薄层板在展开剂中浸泡一段时间
④
增加展开槽中展开剂的量
【单选题】
硅胶GF254的组成是
①
硅胶加12%～14%煅石膏
②
硅胶加黏合剂
③
硅胶不加黏合剂
④
硅胶加12%～14%煅石膏与荧光剂(在254nm紫外光下显强烈黄绿色荧光
【单选题】
在吸附色谱中，分离极性大的物质应选用
①
活性大的吸附剂和极性小的洗脱剂
②
活性大的吸附剂和极性大的洗脱剂
③
活性小的吸附剂和极性大的洗脱剂
④
活性小的吸附剂和极性小的洗脱剂