小宋受朋友之请去某饭店吃饭，中途去洗手间时，因地面油滑不慎摔倒，致使腿骨骨折。对小宋

An anemometer on a moving vessel measures ______.

A.apparent wind speed only

B.true wind speed and true wind direction

C.true wind speed only

D.apparent wind speed and true wind direction

Apparent wind speed blowing across a vessel under tow can be measured by a(n)______．

A.barometer

B.wind vane

C.anemometer

D.Thermometer

A. weather vane，wind vane or wind sock

B. hydrometer

C. hygrometer

D. sling psychrometer

annot tell weather the other vessel has the wind on the port or starboard side, she shall ______.

A.hold course and speed

B.sound the danger signal

C.keep out of the way of the other vessel

D.turn to port and come into the wind

A vessel is wind rode when it is ______.

A.at anchor and heading into the wind

B.backing into the wind

C.carrying lee rudder

D.necessary to apply a leeway correction to the course