影响岩石抗压强度的因素：（）、（）、胶结情况、生成条件、风化作用、密度、水的作用、试件形状和尺寸、加荷速率。
参考答案：矿物成分、结晶程度和颗粒大小
---Why don’t we go to the new Sichuan restaurant for a meal?
-----_____
A．Great! I have been expecting that
B．Sorry, but I forget it
C．No, I won’t go for it
D．It’s not my pleasure
More and more trees should be planted in spring to _____ sandstorms happening frequently.
[ ]
A. protect
B. prevent
C. keep
D. care
