Which of the following firing order may be used for a 6-cylinder engine？ ()
A. 1-2-3-4-5-6
B. 1-2-3-6-5-4
C. 1-5-3-6-2-4
D. 1-3-4-5-6-2
查看答案
Overheating of the hydraulic fluid in an electro-hydraulic anchor windlass can result
A. overload on the pump motor
B. low fluid level in the reservoir
C. low fluid viscosity around the shaft seal
D. high oil level in the sump
属于水不溶性多糖的是
A. 芸香糖
B. 葡萄糖
C. 纤维素
D. 淀粉
E. 阿拉伯糖
Diesel engine blow-by is the leakage of combustion gases past the().
A. oil rings only
B. compression and scraper rings
C. cylinder liner sealing
D. cylinder liner ring grooves
价值工程中，确定产品价值高的标准是()。
A. 成本低，价格高
B. 成本低，功能大
C. 成本高，功能大
D. 成本高，价格高
微信支付 
支付宝支付