The sails ______ themselves with wind.

When experiencing heavy winds，you should reef sails to ______．

A.bring the sails parallel to the wind

B.reduce sail area exposed to the wind

C.allow the sails to catch more wind

D.remove all tension on the main and jib sheets

A.for

B.on

C.from

D.of

A.made; is sailing

B.has made; is sailing

C.made; sails

D.has made; sails

SAILS疑似病人入院时应

A.安置在危重病房

B.安置在普通病房

C.安置在隔离病房

D.安置在心电监护室

E.安置在处置室

A.consignment

B.in board

C.sails for

D.port

The sculptors cannot control the result because ______.

A．it is extremely sunny and warm

B．it shines and/or snows

C．the sun melts their sculptures

D．old sails are raised into the air

A．had taken up

B．had been taken up

C．took up

D．were taken up

A.Log the seaman as a deserter

B.Log the seaman as a fail to join

C.Log the seaman for misconduct

D.Take no action

我国发生的严重急性呼吸综合征（SAILS）很快波及到许多省市，这种发病情况称为（）。

A．暴发

B．大流行

C．季节性升高

D．周期性流行

E．长期变异