下列说法中，错误的是＿。
A. 用人单位与劳动者发生劳动争议，可通过调解解决
B. 劳动仲裁具有最终法律效力
C. 劳动仲裁由劳动争议仲裁委员会决定
D. 劳动争议调解原则适用于仲裁和诉讼程序
When replacing a thermostatic expansion valve sensing bulb, it is necessary to
A. apply a light film of oil to increase heat transfer
B. apply a light film of oil to prevent oxidation
C. apply a heavy coating of grease to function as a heat sink
D. carefully coat the device with silicone sealant to reduce the effects of convective cooling
外购成品活塞和配制活塞的尺寸______等均应符合设计图纸的要求。Ⅰ.形状；Ⅱ.配合精度；Ⅲ.位置精度；Ⅳ.热处理要求；Ⅴ.表面粗糙度。
A. Ⅰ＋Ⅱ＋Ⅳ
B. Ⅰ＋Ⅳ＋Ⅴ
C. Ⅰ＋Ⅲ＋Ⅴ
D. Ⅰ＋Ⅳ
With reference to a two-ram actuating mechanism, which one of the following statement is FALSE？
A. The rams work inside cylinders.
B. The cylinders have glands sealing their open ends.
C. The rams are connected to a cross-head
D. The cross-head is mounted on the rudder stock
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