土的分类方法很多，根据《公路土工试验规程》规定，按土的粒径分为（）。
A.巨粒组
B.粗粒组
C.中粒组
D.细粒组
参考答案：A, B, D
My parents always encourage me to face the trouble in my life.
A．give me a lot of help
B．make me happy
C．give me a lot of hope
D．make me sad
A．Action.
B．World News.
C．Enterprise.
D．Faces and Places.
