P136-141
A: Done
B: Not yet
A: Done
B: Not yet
举一反三
- TIG焊（含钨极氩弧焊）代号（） A: 111 B: 131 C: 141 D: 136
- 熔化极惰性气体保护焊()用焊接数字代号表示为()。 A: 111 B: 131 C: 136 D: 141
- —______you ______your homework yet? —Yes. I ______it a moment ago. A: Did; do; finished B: Have; done; have finished C: Have; done; finished D: Will; do; finish
- She had done something _______(非凡的，不寻常的，显著的)，yet very simple.
- I have not found my book yet; in fact, I am sure _____ I could have done with it.