Another way of expressing the last sentence underlined is______.
A.sucker plants grow beside the parent plant and create new banana plants
B.a new generation of parent plants grows next to the sucker plants
C.growing next to the parent plant helps sucker plants make a new generation of banana plants
D.parent plants have sucker plants growing beside them: two generations of plants thus grow together
第3题
电弧电压是由()决定的。电弧长,电压高;反之,则电压低。
A.焊接电流
B.电弧长度
C.焊接速度
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