It prevents the load from swinging when the boom level is adjusted
Less power is needed when topping the boom with a load on the hook
It maintains the height of the load above the deck
All of the above
第1题：
View the Exhibit for some of the parameter settings. You start a session and issue the following command:SQL>CREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;What is the outcome of the above command?（）
A. The index is not used by the optimizer but is maintained during DML operations.
B. The index is not used by the optimizer and is not maintained during DML operations.
C. The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations.
D. The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.
第2题：
Which statement(s) is/are TRUE concerning crane cargo operations?
A.Do not exceed rated load capacity of crane and container spreader or slings
B.During any cargo handling operation，the safety of personnel is paramount
C.Cargo handlers must be outfitted with adequate protection from personal injury
D.All the above
第3题：
What does the underlined word "they" in Paragraph 6 refer to?
A. The participants in the study.
B. The researchers of the study.
C. The errors made during the study.
D. The data collected from the study.
第4题：
Which of the following statements is TRUE regarding crane operations ________．
A.Radio communications allow the crane operator to disregard the use of hand signals
B.The crane operators and signalman must be familiar with the correct hand signals
C.The forward cranes can be operated from the bridge
D.The aft cranes can be operated from the aft steering station
第5题：
What does “evel-luffing” accomplish during crane operations ________．
A.It prevents the load from swinging when the boom level is adjusted
B.Less power is needed when topping the boom with a load on the hook
C.It maintains the height of the load above the deck
D.All of the above
第6题：
A.It binds an interface to a virtual router.
B.It allows for dynamic interface creation.
C.It assigns a Domain Name Server for a session.
D.It identifies the RADIUS server to use for authentication
第7题：
Which safety precaution（s）should be observed during crane operations ________．
A.Checking for proper lifting from beneath the load during cargo operations
B.Using the proper slings or other lifting devices during cargo operations
C.Relaying communications to port agents on the pier during cargo hoists
D.All of the above
第8题：
A good tour guide tells visitors().
A. What they couldn't miss during the trip
B. What during the trip they couldn't miss
C. What couldn't miss they during the trip
答案：A
解析：本句意思：一个好的导游会告诉游客在旅途中不可错过的东西
本题考查宾语从句语序。在正式文体中，宾语从句一定要用陈述语序，即特殊疑问词回+主语+谓语动词+加其它成分的结构，据此只能选A。
第9题：
Which action（s）are included in crane operations ________．
A.Pre-operation of the anchor windlass
B.Preparing steam on deck
C.Luff，slew，and hoist operations
D.All of the above
第10题：
During which condition should the operator of a pedestal crane shutdown operations ________．
A.Bunkering barge alongside
B.Potable water spill on deck
C.Crane hydraulic hose bursts
D.Trim greater than 4 feet