【单选题】支部大会讨论接收预备党员时,有表决权的党员采取( )的方式进行表决。
【单选题】Seeking a competitive advantage, some professional service firms(for example, firms providing advertising, accounting, or health care services) have considered offering unconditional guarantees of sat...
A.
account for the popularity of a practice
B.
evaluate the utility of a practice
C.
demonstrate how to institute a practice
D.
weigh the ethics of using a strategy
E.
explain the reasons for pursuing a strategy
【单选题】图 1(a) 所示, M 是一个小型理想变压器,原副线圈匝数之比 n1:n2=10:1 ,接线柱 a 、 b 接上一个正弦交变电源,电压随时间变化规律如图 1(b) 所示。变压器右侧部分为一火警报警系统原理图,其中 R2 为用半导体热敏材料 ( 电阻随温度升高而减小 ) 制成的传感器, R1 为一定值电阻。下列说法中正确的是 ( ) 。
B.
当传感器 R2 所在处出现火警时,电压表 V 的示数减小
C.
当传感器 R2 所在处出现火警时,电流表 A 的示数减小
D.
当传感器 R2 所在处出现火警时,电阻 R1 的功率变小
【单选题】“幼儿教育之父___”认为“儿童早期的游戏,不是无关重要的,它是非常严肃的,而且是具有深刻意义的。
【单选题】The monopolisti ccompetition model is one in which there is/are
D.
governmentintervention in the market.
【判断题】支部大会讨论接收预备党员,无记名投票时,因故不能到会的有表决权的正式党员,可以不统计在票数内。()
【单选题】Firms in a competitive market are incurring economic losses. In the long run, firms exit the market and as they do, the economic losses of the remaining firms ______.
A.
increase because the market demand for the good decreases
B.
decrease until the remaining firms break even
C.
decrease until the remaining firms make economic profits
E.
increase because the market demand for the good does not change