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【单选题】
A previously unknown disease, SARS has entered our daily vocabulary. Now we live in its【1】While SARS【2】center stage, an ancient and more infection disease is【3】its ugly head. That disease is panic or irrational fear. We need to have a healthy fear for SARS and to take prudent【4】in preventing ts spread. But panic fear creates【5】it fears. The panic which is generated by SARS will【6】our immune system which【7】us more susceptible【8】this dreaded disease. While SARS is known to【9】transmitted through close personal contact, fear is transmitted through all forms of media, including email. Only an【10】SARS patient can transmit SARS to others. But fear can be transmitted by anyone, sometimes even with the best of intentions. As we know, fear about it does hurt us. So, how do we【11】with fear? Admit our fear and keep moving【12】by living our lives as normally as possible while taking necessary precautions. For example, it is【13】to stop shaking the hand of a healthy friend. At the same time, it is always a good practice to wash our hands before a meal—this【14】be done whether or not SARS【15】. Accept fear as a price of progress. SARS will hit us or it won't. Our fear will not positively change the outcome. Focus on the things you can control not【16】the things you cannot. Feed your faith, not your fear. Faith is a rational trust【17】what's trustworthy. We have a choice each lay to exercise faith【18】to allow fear to rule our lives. We can feed our fear or we can starve it.【19】fear and faith will be with us every minute of every day. The emotion that we continually act upon,【20】is the one we feed, will dominate our lives. Fear will ruin us, but faith will lift us above the crisis we are facing. (1)
A.
shade
B.
shadow
C.
silhouette
D.
image
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【判断题】蓄电池在充电时将电能转变为化学能储存起来。
A.
正确
B.
错误
【简答题】砌体基础必须采用( )砂浆砌筑。
【简答题】蓄电池的作用主要是在充电时将化学能转变为电能储存起来,在放电时再将电能转变为化学能,向起动机或其他用电设备供电。( )
【简答题】蓄电池放电时,将其储存的化学能转变为电能,蓄电池充电时,将___转变为____储存起来,直到化学能储存满时充电结束。
【简答题】好的算法应该达到的目标为:____、____、____、____。
【单选题】砌体基础必须采用( )砂浆砌筑。
A.
混合砂浆
B.
石灰砂浆
C.
水泥砂浆
D.
防水砂浆
【单选题】砌体基础必须采用()砂浆砌筑。
A.
防水
B.
水泥混合
C.
水泥
D.
石灰
【单选题】蓄电池的蓄电原理是()。
A.
充电时将电能转变为化学能储存起来
B.
充电时将机械能转变为化学能储存起来
C.
充电时将物理能转变为化学能储存起来
D.
充电时将化学能转变为电能储存起来
【单选题】若要求放大电路取用信号源的电流小,而且输出电压基本不随负载变化而变化,应引入 ( )负反馈。
A.
电流串联
B.
电压串联
C.
电流并联
D.
电压并联
【单选题】蓄电池在充电时()。
A.
将电能转变为化学能储存起来
B.
将化学能转变为电能
C.
将物理能转变为电能
D.
将物理能转变为化学能
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