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【单选题】
某女，52岁，心脾两虚、气血不足，症见心悸怔、失眠健忘、食少倦怠、面色萎黄。宜选用的成药是( )。A.
地黄丸
B.
人参归脾丸
C.
白术散
D.
香砂六君丸
E.
七宝美鬓丸
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【简答题】I was packed and ready to leave for my two days’ trip. My mind had been filled with work and with so many small things to deal with. As I got into the car to leave, my thoughts turned to my children. ...
【简答题】从分别写上数字1，2，3，…，9的9张卡片中，任取2张，观察上面数字，试求下列事件的概率： （1） 两数和为偶数； （2） 两数积为完全平方数。
【多选题】应用叠加定理来分析计算电路时,应注意( )
A.
叠加定理只适用于线性电路
B.
各电源单独作用时,其他电源置零
C.
叠加时要注意各电流分量的参考方向
D.
叠加定理适用于电流、电压、功率
【单选题】Which sentence from the article states a main idea of the entire article?
A.
Kids love playing with little green army men.
B.
Come Christmas of next year, the army will include little green women.
C.
Her letter was filled with 6-year-old spelling mistakes.
D.
The fourth woman would be kneeling and firing a gun.
【多选题】Which of the following sentences are appropriate with the word “inquisitive”?
A.
The kids were wide-eyed and inquisitive.
B.
Jenny was a very inquisitive child, always asking "why?"
C.
Don't be so inquisitive - it makes people uncomfortable.
D.
The crowded room was filled with lights, cameras, and inquisitive reporters.
【单选题】用叠加定理求电压电流时,在分电路中分别求出各电源单独作用时所产生的分量然后叠加。应该注意的是分电路中电压(或电流)参考方向应与原电路中参考方向相同,如果不同叠加时应如何处理?
A.
该分量取负值，然后叠加
B.
该分量取正值，然后叠加。
C.
按正常情况计算即可
相关题目：
【多选题】应用叠加定理来分析计算电路时,应注意( )
A.
叠加定理只适用于线性电路
B.
各电源单独作用时,其他电源置零
C.
叠加时要注意各电流分量的参考方向
D.
叠加定理适用于电流、电压、功率