单选题What is the purpose of this notice?A To explain the upgrade policyB To outline the types of rooms availableC To provide information about the room ratesD To describe the hotel’s common facilities

正确答案：Purifier is used to separate oil from impurities such as sludge , ash ,various salts and water existing in the oil by means of gravitational rotation (centrifuging ).gravity disc is used for the purpose of establishing the correct oil water interface depending on the oil specific gravity .

正确答案：C

正确答案：D
解析：A和B选项与事实不符，属于错误答案；C选项也被否定，原因是文中说北京饭店并不接受提前这么长时间的预订，而只是记下预订人的姓名。D选项可以在文章中找到出处：“... the hotel had already received 50 to 60 such phone calls from would-be game-goers gambling on the result．Domestic callers have mainly come from the southern provinces of Guangdong and Fujian.”

答案：C

解析：

答案：C

解析：

正确答案：B

正确答案：C

45．答案为C  通过全文的介绍可知该文章讲述了修剪树木的注意事项，因此C是正确答案。

正确答案：
4 Overview:
References are used by most employers as a key part of their selection process, but mainly to verify facts about the candidate rather
than as an aid to decision making. The reference check is usually the last stage in the selection process and referees should be
contacted only after permission has been given by the applicant. Good referees are almost certain to know more about the
applicant than the selector and it would be foolish not to seek their advice or treat the reference check as a mere formality.
Part (a)
References provide further confidential information about the prospective employee. This may be of varying value, as the reliability
of all but the most factual information must be in question.
The purpose of a reference is to obtain straightforward factual information confirming the nature of the applicant’s previous job(s),
the period of employment, current pay and the circumstances for wishing to leave the present employment and to seek opinions
about the applicant’s personality and other attributes. However, allowance must be made for prejudice and charity.

答案：B

解析：