the 11 man who came in was blind. He wanted scissors（剪刀）.
A. clever
B. other
C. right
D. next
查看答案
井下用机车运送爆炸材料时，列车的行驶速度不得超过()m/s。
A 1
B 2
C 3
D 4
He 10 his head and pointed to the two fingers
A. nodded
B. raised
C. shook
D. turned
（） 查看材料
A. cutting
B. hammering
C. waving
D. Circling
a deaf-and-dumb（聋哑） man 8 some nails.
A. bought
B. tasted
C. found
D. Needed
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