The two reputable hydrogeologists drafted some highly optimistic projections—with the （） that these were speculative and should of course be tested.

FAUNA: ANIMALS ::（） A．flora: plants B．vegetation: abori...

单项选择题FAUNA: ANIMALS ::（）

Even though avant-garde attacks on the Victorian bourge...

单项选择题Even though avant-garde attacks on the Victorian bourgeoisie were （）in rhetoric, deficient in evidence, and malicious in intent, it does not follow that they had no （） grounds.

Scientists have （） for years that turbulence within the...

单项选择题Scientists have （） for years that turbulence within the gaseous clouds found throughout the Milky Way stymies star formation, but some of the forces behind this disturbance remain （）.