Gasoline
Water
Lubricating oil
sulphur compounds
第1题：
A. undo
B. remove
C. delete
D. unset
第2题：
Which of the following should the technician do FIRST when replacing a motherboard?（）
第3题：
Using the table in the Special window, Which task is completed?
A.dig hole
B.remove debris
C.survey
D.set forms
E.place concrete
第4题：
Which of the following below would BEST optimize Windows XP startup?（）
第5题：
A technician has resolved a paper jam. After the jam is cleared, the display continues to indicate that the printer is jammed. Which of the following should be performed NEXT?（）
第6题：
Given that a scoped attribute cart exists only in a user’s session， which two，taken independently，ensurethe scoped attribute cart no longer exists？（）
第7题：
Which SQL statement would you use to remove a view called EMP_DEPT_VU from your schema?（）
第8题：
A.It can be applied to separate two liquids
B.It cannot separate solids which contaminated in the oil.
C.It consists of purifier and clarifier
D.The centrifuge arranged to separate two liquids is known as purifier
第9题：
A technician is performing preventive maintenance on the hardware components in a workstation. Which of the following actions should the technician take？ （）
第10题：
A technician is preparing to update the BIOS on a laptop. Which of the following should thetechnician do to prevent problems during the update?（）