若正弦交流电压和电流的最大值分别是Um和Im,则视在功率的表达式为() A: Um*Im/2 B: Um*Im/2 C: 2Um*Im D: 2Um*Im
若正弦交流电压和电流的最大值分别是Um和Im,则视在功率的表达式为() A: Um*Im/2 B: Um*Im/2 C: 2Um*Im D: 2Um*Im
正弦交流电的有效值和最大值之间的关系为（）。 A: Im=√2I B: Im=√2I／2 C: Im=I
正弦交流电的有效值和最大值之间的关系为（）。 A: Im=√2I B: Im=√2I／2 C: Im=I
",(*p)(x,y)); } double avg(double a,double b） { return((a+b)/2);}
",(*p)(x,y)); } double avg(double a,double b） { return((a+b)/2);}
表达式2/5、2%5、(double)(2/5)和(double)2/5的值分别是_____、______、_____、_____。
表达式2/5、2%5、(double)(2/5)和(double)2/5的值分别是_____、______、_____、_____。
Which of the following orders should a nurse question for a client who is scheduled for surgery? A: Demerol (meperidine) 200 mg IM B: Atropine sulfate 0.4 mg IM C: Valium (diazepam) 2 mg IM D: Phenergan (promethazine) 25 mg IM
Which of the following orders should a nurse question for a client who is scheduled for surgery? A: Demerol (meperidine) 200 mg IM B: Atropine sulfate 0.4 mg IM C: Valium (diazepam) 2 mg IM D: Phenergan (promethazine) 25 mg IM
以下哪个表达式的值为0.5? A: 1/2 B: 1.0/2 C: (double)(1/2) D: (double)1/2 E: 1/2.0
以下哪个表达式的值为0.5? A: 1/2 B: 1.0/2 C: (double)(1/2) D: (double)1/2 E: 1/2.0
Der Vorsitz im Europäischen Rat wechselt alle 2 Jahre（）
Der Vorsitz im Europäischen Rat wechselt alle 2 Jahre（）
What did Mr. Yang reserve for the guests? A: 3 single rooms B: 3 double rooms C: 2 single rooms D: 2 double rooms
What did Mr. Yang reserve for the guests? A: 3 single rooms B: 3 double rooms C: 2 single rooms D: 2 double rooms
表达式：(int)((double)9/2)-(9)%2的值是
表达式：(int)((double)9/2)-(9)%2的值是
Which one of the following expressions is the most accurate?: CA - IM = EX|CA = EX + IM|CA = EX - IM|CA = EX = IM|CA = IM - EX
Which one of the following expressions is the most accurate?: CA - IM = EX|CA = EX + IM|CA = EX - IM|CA = EX = IM|CA = IM - EX