康明斯KTA-l9G2柴油机的连杆大头结构特点是（）.
A.整体式
B.平切口剖分式
C.45°斜切口剖分式
D.60°斜切口剖分式
参考答案：B
These books are ___ children. There are many interesting stories with pictures in them.
A．devoted to
B．intended for
C．connected with
D．introduced for
苗画是在什么的基础上发展起来的一种独立画种？
