如图所示的电路中,属于两灯串联的是[ ]
A.
B.
C.
D.
B
已知随机量X服从正态分布N(3,1),且P(2≤X≤4)=0.6826,则P(X>4)=
A.0.1588
B.0.1587
C.0.1586
D.0.1585
Next winter, _________I’ll stay in Jilin City, will surely be another exciting holiday. [ ]
A. which
B. when
C. that
D. where