試驗(yàn)員試驗(yàn)員(基礎(chǔ)知識(shí))單項(xiàng)選擇題每日一練(2019.12.12)

A.45°
B.90°
C.135°
D.180°

A.97%
B.96%
C.95%
D.結(jié)果無效，應(yīng)重做

A.1
B.2
C.3
D.4

A.初步配合比
B.基本配臺(tái)比
C.試驗(yàn)室配臺(tái)比
D.工地配合比

A.12mm
B.15mm
C.18mm
D.25mm