1. [单选题]《轮机日志》记载表格按右、左两台主机编制，如系一台主机，其参数一律在____主机栏内记载。
A. 左
B. 右
C. 左或右
D. 左和右
2. [单选题]If a heavy sea strikes the rudder, the shock is transmitted through ___ to the rams, this cause a sudden increase in oil pressure in one of the cylinders.
A. the control rod
B. the hunting gear
C. the floating ring
D. the tiller arm
3. [单选题]船上的汽笛长声的持续时间为()秒，短声的持续时间为()秒左右。
A. 5，2
B. 4～6，2
C. 4～6，1
D. 8～10，2
