E4323焊条的焊接位置可以是（）
A.全位置焊
B.平焊及平角焊
C.立焊
D.仰焊
参考答案：B
—How is it going?
—Thanks _____ the weather, the crops grow well. [ ]
A. to
B. for
C. a lot
运行中抗燃油的颜色迅速变深，应采取何种方式进行处理？
