若气门在开启状态下卡住时,柴油机将产生()现象。
A.摇臂横桥折断
B.活塞敲击气门
C.机油压力迅速降低
D.摇臂折断
参考答案:B
Which of the following is President Roh Moo-hyun’s argument for relocation of the capital a. Efficiency of government. b. Environmental protection. c. Decentralization. d. Traffic concerns.
原料或半成品在烹调前未彻底解冻会出现()现象。
A.外熟内生的现象
B.生熟内外的现象
C.食品受热不均匀
D.烹调中温度不够