对油田水的碳酸钙垢的预测，朗格利尔（Langelier）饱和指数法的经验公式中的SI＝0时，表明碳酸钙（）状态，即没加腐蚀性也没有结垢性。 ["A.未到达饱和","B.呈过饱和","C.达到饱和（平衡）","D.呈结晶"]
Badly leaking refrigeration compressor discharge valves will cause（）. ["overfeeding of the expansion valve","damage to the condenser","constant running of the compressor","flooding of the receiver"]
The securing of passenger cars on a Ro-Ro vessel requires（）. ["simple and lightweight equipment","low labor intensive equipment","specially designed equipment to avoid vehicle damage","All of the above"]
对油田水的碳酸钙垢的预测，朗格利尔（Langelier）饱和指数法的经验公式中的SI＜0时，称为（） ["饱和水","不饱和水","呈过","腐蚀型水"]
中国银行油贷通宝的叙做标的物是（）。 ["A.花生油","B.石油","C.橄榄油","D.机油"]
旋转电机着火的灭火措施有哪些？
