船舶空调装置自动控制包括哪些内容?
参考答案:
1.降温工况的温度自动调节;
2.采暖工况的温度自动调节;
3.采暖工况的湿度自动调节;
4.供风系统静压的自动调节。
下列各组离子能大量共存的是
A.NH4+、Na+、CO、OH-
B.ClO-、S2-、K+、Fe3+
C.Al3+、NO、AlO、SO
D.H+、Ba2+、Cl-、NO
The clearinghouse in a futures contract performs all but which of the following roles The clearinghouse :()
A. allows traders to reverse their position without having to contact the other side of the position.
B. guarantees the physical delivery of the underlying asset to the buyer of futures contracts.
C. splits each trade and acts as a buyer to futures sellers and as a seller to futures buyers.