Hard rubber
Canvas
Leather
Sponge rubber
第1题：
Injectors for use with heavy fuel oil must be cooled by either water or light oil to_____.
A.prevent heat corrosion to internal components
B.increase fuel delivery rate and economy
C.prevent pre-ignition
D.avoid carbonization of the nozzle tips
第2题：
In order to prevent a person ______ general average contribution on the ground that he was at fault，the fault must be something which constitutes an actionable wrong．
A.to recover
B.to be recovered
C.being recovered
D.recovering
第3题：
Delivery must be effected within the time stated on the purchase order, ()the Buyer must atits opinion cancel the order.
A、while
B、otherwise
C、untill
D、in case of
第4题：
The writers of the Constitution worked out the Constitution worked out the checks and balances in order to（）
第5题：
第6题：
A. QoS must be set to Platinum
B. WMM must be enabled
C. QoS must be set to Gold
D. TSPEC must be disabled
E. Cisco Compatible Extensions must be disabled
第7题：
Electrical wiring on all "T-Boats" must be ______.
A.concealed to prevent mechanical damage
B.concealed so the boat can be maintained more easily
C.protected from the weather
D.in an accessible place behind the ceiling
第8题：
The acceptance letter must contain the order number and date as well as other information concerning the execution of the order.()
第9题：
In order to（）your goals, you must work hard.
Amake
Bachieve
Crequire
Ddevelop
第10题：
Which two settings must be configured in order to use the GUI to configure Call Admission Controlwith voice applications？ （）