问题
单项选择题
盘式制动器的制动盘应平整、无变形,磨损后的厚度不应小于()。
A.2mm
B.3mm
C.4mm
D.5mm
答案
参考答案:B
盘式制动器的制动盘应平整、无变形,磨损后的厚度不应小于()。
A.2mm
B.3mm
C.4mm
D.5mm
参考答案:B
A: What do you usually do after school , David ? B: ____1_____ How about you , Jenny ? A: I usually do my homework . ____2_____ B: What sport do you usually play ? A: ____3____ B: I don’t like basketball . My favorite sport is tennis , and I often play tennis . A: ____4_____ B: No , I can’t . ____5_____ He often plays volleyball with his friends
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