单机车次的机车停车后制动缸压力<()kPa或列车管减压不足80kPa时,5s后LKJ连续语音提示“注意管压防溜”,管压防溜功能启动。
A.50
B.80
C.100
参考答案:B
—What did the teacher say just now?
—He asked them ____ the math problem. [ ]
A. discussing
B. discussed
C. to discuss
D. discuss
子宫颈腺癌最常见的类型是()。
A. * * 状腺癌
B.管状腺癌
C.黏液腺癌
D.低分化腺癌
E.未分化癌