Limitation and range markings on the airspeed indicator include the white arc(53 to 85 knots), green arc (44 to 129 knots), yellow arc (129 to 163 knots),and a red line (163 knots). A: True B: False

Chinese knots are usually asymmetrical in structure, so the finished knots look drastically different from the front and the back. （ ）

Lesson Three Blank-filling 2-3 3) 1 , runway-in-use 2 , surface wind 3 degrees, 4 knots, gusting 5 knots.

You are underway at 5 knots and see on your radar a contact 10 miles directly astern of you. 12 minutes later，the contact is 8 miles directly astern of you. What is the estimated speed of the contact? （） A: Dead in the water B: 1 knot C: 10 knots D: 15 knot

Lesson 15 填空-8 [音频] ______, make a ______, negative for __________ due to _______, cleared to land wind 180 5knots

knots ( ) A: 名词 B: 动词 C: 形容词

Chinese knots can be used to express blessing.

In Chinese culture, knots can connote such meanings as ________.

Spot dictation37 _________ 250 knots or _________. [音频]

Spot dictation254 Maintain 300 knots or _________. [音频]