直线y=2x+3与y=5x-2b交于y轴上一点,则b=( )。
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141. According to recent reports, one of the rare animals, _______ crocodile, will be in danger of dying out in _____ 2020s.
A.a; /
B.the; the
C.the; /
D./; the
A.电流表的示数为3/11 A
B.通过灯泡的电流的频率为50Hz
C.电流表的示数为3/22 A
D.理想变压器原、副线圈匝数之比为2:1