桥梁桩基础钻孔方法中,采用()可以保证成孔垂直度和孔位。
A.正循环回转钻孔
B.旋挖钻机钻孔
C.潜水钻机钻孔
D.冲抓钻孔
第2题
A.I like Miss Zhao very much.
B.Miss Zhao taught us math.
C.Miss Zhao came here last year.
D.I like math very much.
第3题
A.I like Miss Zhao very much.
B.Miss Zhao taught us math.
C.Miss Zhao came here last year.
D.I like math very much.
第4题
Did the man enjoy the concert yesterday?
A.Yes, he liked it very much.
B.No, he didn't.
C.He didn't go there at all.
第5题
Did the man enjoy the concert yesterday?
A.Yes,he liked it very much.
B.No,he didn’t.
C.He didn’t go there at all.
第6题
Did the man enjoy the concert yesterday?
A.Yes, he liked it very much.
B.He didn't go there at all.
C.No, he didn't.
第8题
Did the man enjoy the concert yesterday?
A.Yes,he liked it very much.
B.He didn't go there at all.
C.No, he didn't.
第9题
A.They could not play all the notes of the scale.
B.They were not able to pick up the trumpet.
C.They could not play simple tunes.
D.They had difficulty, improving upon the trumpet.
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