皮皮学，免费搜题
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【判断题】
儿童最初的情绪反应与社会性的需要相联系。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Pressure switch controls ( )
A.
electrical circuit
B.
flow direction
C.
fluid pressure
D.
oil flowrate
【单选题】The refrigeration system low pressure cutout switch is actuated by______.
A.
an electric system manager
B.
a sensing bulb at the tail coil of the evaporator
C.
pressure changes in the suction line
D.
failure of the king solenoid valve
【单选题】If a refrigeration compressor were short cycling on the low pressure cutout switch, the probable cause for this might be the ______.
A.
system was overcharged with refrigerant
B.
high pressure switch was improperly adjusted
C.
expansion valve strainers were fouled
D.
suction valves were leaking slightly
【单选题】If the compressor runs continually, the cause might be the .
A.
high-pressure cutout switch is jammed open
B.
low-pressure switch is jammed shut
C.
thermal bulb is not operating properly
D.
scale trap is clogged
【单选题】Pressure switch controls ( )
A.
fluid pressure
B.
flow direction
C.
oil flowrate
D.
electrical circuit
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