对于空心电抗器（并联电抗器）电抗值测量，测量可在电压（）额定电压的任何电压下进行。
A.高于
B.低于
C.不高于
D.不低于
参考答案：C
If the liferaft capsizes，all personnel should leave the raft and（）.
A.climb onto the bottom
B.swim away from the raft
C.right the raft using the righting strap
D.inflate the righting bag
