Cirrus clouds are composed primarily o

1、In many areas “atoll” clouds (clouds o

In many areas “atoll” clouds (clouds of vertical development) are produced over small islands. These are the result of（）.Arising air currents...

2、Cumulonimbus clouds are formed by（）.

Cumulonimbus clouds are formed by（）.Avertical air movementsBheavy rainstormsChorizontal air movementsDany movement of moist air

3、Signaling devices which are required o

Signaling devices which are required on inflatable liferafts include（）.Aa rocket shoulder rifleBan oil lanternCred flaresDan air hor

4、A cloud sequence of cirrus，cirrostratu

A cloud sequence of cirrus，cirrostratus，and altostratus clouds followed by rain usually signifies the approach of a(n)（）.Aoccluded frontBstationary frontCwarm frontDcold front

5、Which three characteristics are true o

Which three characteristics are true of the ProtectLink Gateway product?（）A protects from spyware and phishing attacksB provides web server cont...

6、Altocumulus clouds are defined as（）.

Altocumulus clouds are defined as（）.Ahigh cloudsBmiddle cloudsClow cloudsDvertical development cloud