目前测井使用的电缆直径可分为()、()、()和()。
参考答案:φ12.7mm;φ11.8mm;φ8mm;φ5.6mm
Look out, David! A car is coming. [ ]
A. Don't run
B. Walk fast
C. Be careful
D. Take care of
目前应用试带法测定尿液中pH,其检测范围为
A.5.5~8.5
B.5.0~8.5
C.6.0~9.5
D.6.0~9.0
E.5.0~9.0