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【单选题】
句子：是能够表达一个相对完整的意思并且有一个特定语调的语言单位。根据以上定义，下列陈述中不属于句子的是( )A.
快跑
B.
在那高高的建筑物上
C.
好大的雪呀
D.
禁止吸烟
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反馈参考答案：
举一反三
【单选题】A solenoid valve used in a refrigeration system should be installed （）.
A.
with the axis of the solenoid horizontal, sensing temperature of the box, and upstream of the thermal expansion valve
B.
upright, sensing temperature of the box, and upstream of the thermal expansion valve
C.
upright, sensing temperature of the box, and downstream of the thermal expansion valve
D.
upright, sensing heat of the tail coil, and upstream of the thermal expansion valve
【单选题】In a starting circuit containing a solenoid, when is battery current supplied to the starter motor?
A.
When the remote control switch is closed
B.
At the time the ignition switch is turned to the start position
C.
After the starter pinion is engaged with the flywheel
D.
When the plunger closes the contacts in the solenoid
【简答题】starter solenoid____________________
【简答题】除了#define之外，相应地还有【】指令用于取消宏定义。
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