As we have known from the map of the world，this is ________.

A．twice as large an island as that

B．twice as large as that island

C．as twice large as that one

D．twice as a large island as that

可用于治疗青光眼的药物除外

A．毛果芸香碱

B．毒扁豆碱

C．噻吗洛尔

D．呋塞米

E．甘露醇