ΔABC三边a,b,c成等比数列，则（ ）

A．B≥60⁰

B．B=60⁰

C．B≤60⁰

D．无法判断B的大小

. —Has the conference about building a water-power plant come to an end?

—No, it’s _______. Experts just disagree on some issues.

A．under discussion

B．under control

C．under consideration

D．under way