【推荐1】As a symbol of Chinese history, the Palace Museum ________ the cultural memory of the country.

A．preserves

B．prevents

C．acquires

D．declares

【推荐2】A series of huge channels – some almost a kilometer below the ice – ________ the warmer, deep ocean water to flow up to the front of the glacier, melting it increasingly rapidly.

A．drown

B．prevent

C．allow

D．stir

【推荐3】—What’s the weather like tomorrow?
—Look at the beautiful clouds. Maybe they ________ a fine day tomorrow.

A．record

B．invite

C．promise

D．prevent

【推荐1】A series of huge channels – some almost a kilometer below the ice – ________ the warmer, deep ocean water to flow up to the front of the glacier, melting it increasingly rapidly.

A．drown

B．prevent

C．allow

D．stir

【推荐2】If you don’t feel well, remember to ________ your doctor before taking any medicine.

A．stir

B．wipe

C．consult

D．mix