手工电弧焊适用于()钢、()钢、()钢、()钢和()钢等各种材料的焊接。
参考答案:碳;低合金;耐热;低温;不锈
---What do you think of the speech of Li Yang’s Crazy English?
---I think it’s ________, but my friend thinks it’s too ________.
A.wonderful enough, bored
B.enough wonderful, boring
C.wonderful enough, boring
D.enough wonderful, bored
什么是纳米羽绒服?