【C20】A．shakingB．noddingC．shookD．/

A． shakingB． hangingC． fallingD． floating

The flags in the stadium______in the wind.（2014-75)A．flappedB．movedC．shookD．stirred

The flags in the stadium____ in the wind.A．flappedB．movedC．shookD．stirred

【C10】A．shakingB．noddingC．shookD．/

With prices______ so much, its hard for the company to plan a budget.A．shakingB．fluctuatin

下列物质中 ( )是目前已经肯定的必需脂肪酸。A C16:2B C18:2C C18:3D C20:3(E)C20:4