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当出现故障122:Temperature generator overhang,都有可能是哪些原因造成的?
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更多 “当出现故障122:Temperature generator overhang,都有可能是哪些原因造成的?” 相关考题
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阅读下列说明和C++代码,将应填入 (n)处的字句写在答题纸的对应栏内. 【说明】 某实验室欲建立一个实验室环境监测系统,能够显示实验室的温度、湿度以及洁净度等环境数据。当获取到最新的环境测量数据时,显示的环境数据能够更新。 现在采用观察者(Observer)模式来开发该系统。观察者模式的类图如图5-1所示。【C++代码】 include iostream include vector using namespace std; class Observer { public: virtual void update(float temp, float humidity, float cleanness)=0; }; class Subject { public: virtual void registerObserver(Observer* o) = 0; //注册对主题感兴趣的观察者 virtual void removeObserver(Observer* o) = 0; //删除观察者 virtual void notifyObservers() = 0;//当主题发生变化时通知观察者 }; class EnvironmentData : public (1) { private: vectorObserver* observers; float temperature, humidity, cleanness; public: void registerObserver(Observer* o) { observers.push_back(o); } void removeObserver(Observer* o) { /* 代码省略 */ } void notifyObservers() { for(vectorObserver*::const_iterator it = observers.begin(); it != observers.end(); it++) { (2) ; } } Void measurementsChanged() { (3) ; } void setMeasurements(float temperature, float humidity, float cleanness) { this-temperature = temperature; this-humidity = humidity; this-cleanness = cleanness; (4) ; } }; class CurrentConditionsDisplay : public (5) { private: float temperature, humidity, cleanness; Subject* envData; public: CurrentConditionsDisplay(Subject* envData) { this-envData = envData; (6) ; } void update(float temperature, float humidity, float cleanness) {this-temperature = temperature; this-humidity = humidity; this-cleanness = cleanness; display(); } void display() { /* 代码省略 */ } }; int main() { EnvironmentData* envData = new EnvironmentData(); CurrentConditionsDisplay* currentDisplay = new CurrentConditionsDisplay(envData); envData-setMeasurements(80, 65, 30.4f); return 0; }
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当高压电网发生三相短路故障时,其短路电流非周期分量出现最大瞬时值的条件是( )。
A. 短路前负载,电压初相位为0o
B. 短路前负载,电压初相位为90o
C. 短路前空载,电压初相位为0o
D. 短路前空载,电压初相位为90o
考题
阅读下列说明和C++代码,回答问题,将答案填入相应横线处。【说明】某实验室欲建立一个实验室环境监测系统,能够显示实验室的温度、湿度以及洁净度等环境数据。当获取到最新的环境测量数据时,显示的环境数据能够更新现在采用观察者(observer)模式来开发该系统,观察者模式的类图如下图所示。
?【C++代码】#include #include using namespace std;class Observer {public:????virtual void update(float temp, float humidity, float cleanness)=0;};class Subject {public:????virtual void registerObserver(Observer* o) = 0; //注册对主题感兴趣的观察者????virtual void removeObserver(Observer* o) = 0; //删除观察者????virtual void notifyObservers() = 0;//当主题发生变化时通知观察者};class EnvironmentData : public?????(1) ????{private:vector observers;float temperature, humidity, cleanness;public:????void registerObserver(Observer* o) { observers.push_back(o); }????void removeObserver(Observer* o) { /* 代码省略 */ }????void notifyObservers() {for(vector::const_iterator it = observers.begin(); ???????????it != observers.end(); it++){???????(2) ???; }}Void measurementsChanged() {?????(3) ???; }void setMeasurements(float temperature, float humidity, float cleanness) {????this->temperature = temperature;????this->humidity = humidity;????this->cleanness = cleanness;????????(4) ???;????}};class CurrentConditionsDisplay : public?????(5) ???{private: ?????float temperature, humidity, cleanness;????Subject* envData;public:????CurrentConditionsDisplay(Subject* envData) {????????this->envData = envData;???????????(6) ??; ??????}void update(float temperature, float humidity, float cleanness) ?{this->temperature = temperature;????this->humidity = humidity;????this->cleanness = cleanness;????display();}void display() { /* 代码省略 */ }};int main() {????EnvironmentData* envData = new EnvironmentData();????CurrentConditionsDisplay* currentDisplay = new CurrentConditionsDisplay(envData);????envData->setMeasurements(80, 65, 30.4f);????return 0;}
考题
当油泵与电机间联轴器损坏会报出()故障。A、Err154 Gearbox high spee;Dpump no pressureB、Err093 Timeout gearbox heatingC、Err131 Gearbox oil temperature90ØD、Err144 Circuit breaker gearbox high speed
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Which of the following can conserve energy in a server room?()A、Sealing all potential cold air leaksB、Installing additional cooling fansC、Setting the temperature lowerD、Replacing the UPS with a generator
考题
单选题The speed of the turbocharger for a four-stroke/cycle diesel engine driving a generator at constant speed depends on the ()A
engine speedB
kilowatt loadC
fuel injection pressureD
air intake manifold temperature
考题
单选题若在屏幕上出现“NO System disk o rdisk error”则表示()。A
机器出现故障B
未插系统盘和磁盘C
内存检查出故障D
某外部设备出故障
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