the scavenging air
the exhaust gases
the mixed air
the spray oil
第1题：
With a given load on the cargo hook，tension in a single span topping lift ______.
A.increases as the boom's angle to the horizontal increases
B.is at a maximum when the boom is at a 45° angle to the horizontal
C.increases as the boom's angle to the horizontal decreases
D.decreases as the boom's angle to the horizontal decreases
第2题：
______is an angle at which a cargo settles in the hold of a ship，between the horizontal and the slope made by a bulk cargo such as grain or iron ore．
A.Angle of loll
B.Angle of inclination
C.Angle of repose
D.Angle of list
第3题：
A、cargoes
B、cargo
C shipments
D、quantities
第4题：
，亚类
Angle错
分类为第5题：
分类最为简单，常以上下颌第一磨牙的咬合关系为纲进行划分。
1分类
2分类
第6题：
With a given load on the cargo hook，the thrust on a cargo boom ______.
A.increases as the angle to the horizontal increases
B.increases as the angle to the horizontal decreases
C.is greatest at an angle of 45° and decreases as the boom is raised or lowered
D.is least at an angle of 45° and increases as the boom is raised or lowered
第7题：
Mariners proceeding across the main routes are recommended to do so at______．
A.as wide an angle as practicable
B.as wide an angle so practicable
C.like wide an angle as practicable
D.like wide as angle so practicable
第8题：
On a crane, the boom indicator tells the operator what angle the boom angle is compared to the ______.
A.vertical position
B.horizontal position
C.boom stop angle
D.minimum radius angle
第9题：
，亚类
关系之外又有上颌切牙的舌侧倾斜，Angle分类为第10题：
