A.lineB.ropeC.A+BD.wire缆绳（）……

单项选择题When we meet a（军舰）（）, we should lower national flag.

A. warship
B. boat
C. container ship
D. bulk carrier

单项选择题As a duty sailor, he should （）.

A. keep a gangway watch
B. often look around the ship
C. hoist and lower national flag on time
D. A+B+C

单项选择题在船上应当日出时升起国旗。（）

A. On board national flags should be hoisted when the sun sets.
B. On board national flags should be hoisted when the sun rises.
C. On board national flags should be lowered when the ship is in port.
D. On board national flags should be hoisted flag when loading and discharging

单项选择题在船上应当日落时降下国旗.（）

A. We should lower national flag when the sun sets.
B. We should lower national flag when the ship is in port.
C. We should lower national flag when loading and unloading.
D. We should lower national flag when the sun rises.

单项选择题Take down Flag “G” and（）(升) Flag “H”.

A.raise
B.lower
C.rise
D.hoist

单项选择题We should hoist national flag（）（按时）.

A. on time
B. in time
C. soon
D. at times

单项选择题When we hoist national flag together with other flags, we should keep the national flag in the （）place.

A.centre
B.lower
C.A+B
D.A o rB

单项选择题We can’t hoist （）national flag.

A.clean
B.worn
C.beautiful
D.good

单项选择题We should （）the national flag when the sun rises.

A.hoist
B.hoists
C.hoisting
D.hoisted

单项选择题It shows mourning when you lower（）(半旗).

A. half-mast
B. dip the mast
C. flag line
D. flag mast

单项选择题You should keep national flag（飘扬）（）.

A.flew
B.flown
C.flying
D.flies

单项选择题（）（降）the flag.

A.Hoist
B.Top
C.Lower
D.Bring

单项选择题National flag should not be（卷叠）（）.

A. rolling up
B. rolls up
C. rolled up
D. roll up

单项选择题国旗（）

A.ensign
B.flag
C.mark
D.design

单项选择题旗（）

A.flight
B.fly
C.fire
D.flag