the dark appearance of the underside of a cloud layer due to reflection of a surface of open water
the soft light appearance on the underside of a cloud layer due to reflection from a surface of open water
the yellowish-white glare on the underside of a cloud layer
water sky
第1题：
When operating in an area where sea ice and icebergs are present，which statement is TRUE ________．
A.Icebergs may travel in a direction many degrees different from the sea ice
B.Both icebergs and sea ice will move in approximately the same direction and at the same speed
C.Icebergs and sea ice will move in the same direction，but at different speeds due to the sail effect of the berg
D.Icebergs and sea ice will move in the same direction，but the iceberg will move slower because of its underwater bulk
第2题：
In ice of higher concentrations ______ is not one of the basic applying rules．
A.keep moving
B.try to work with the ice movement，and not against it
C.excessive speed means ice damage
D.use full astern as often as possible
第3题：
In cold, damp weather, the buildup of ice on airplane wings can pose significant aerodynamic problems. Which of the following effects would you expect?
A.As ice builds up on the top of the wing, drag increases.
B.As ice builds up on the top of the wing, lift increases.
C.As ice builds up on bottom of the wing, lift decreases.
D.All of the above
To answer this question, you need to understand the concepts of lift and drag. You also need to recognize that Table 1 provides the data relevant to the question. Ice building up on top of the wing would increase lift, since the higher the curved upper surface of the wing, the greater the difference between the speed of air moving under the wing and above it. It would also increase drag, as suggested by the third column of Table 1: notice how the wings with the higher upper surface also have greater drag. Finally, ice building up under the wing would decrease the speed of air moving under the wing and so reduce lift. Thus, all three effects would occur.
第4题：
冰激淋的英文名称为（）。
第5题：
下面是对公开投诉的论述，正确的是：（）
第6题：
You are on an ice-reinforced vessel about to enter packice．You should ______．
A.enter the pack on the windward side where there is a well defined ice edge
B.trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcement
C.take maximum advantage of coastal leads caused by offshore winds
D.look for areas of rotten ice and enter perpendicular to the ice edge
第7题：
放在标识（）之间的文本字体将会加粗。
第8题：
_____ ice cream in the world is more delicious than American ice cream.
A: None
B: Neither
C: Not
D: No
第9题：
ICE的英文全称是（）
第10题：
冰期（ice age）