It took _______ building supplies to construct these energy-saving houses. It took brains, too. [ ]

A. other than

B. more than

C. rather than

D. less than

信托型私募股权投资机构的特点包括（）。

A、有破产隔离制度

B、没有破产隔离制度

C、投资人进入门槛高

D、投资者进入门槛低