粘土颗粒在受热后（100℃），起粘结作用的主要粘结机制是“桥连接”。
参考答案：对
伊泰普水电站位于____________河上，是巴西与____________（填国家名）合建的。
I turned down his invitation to dinner as I didn't want to ______ on him.
A．invade
B．disturb
C．interfere
D．impose
